520:
445:
509:
71:
457:
799:
177:
811:
268:
290:. Over the 4.5 billion-year history of the Earth, tectonic upheavals and colliding plates have raised great mountain ranges while the forces of erosion and weathering worked to tear them down. Even after many millions of years, records of Earth's great upheavals remain imprinted as textural variations and surface patterns that define distinctive landscapes or provinces.
19:
685:
1018:
394:
98:, are the base for much of this diversity. There are over 140,000 invertebrates in the United States which is constantly growing as researchers identify more species. Fish are the largest group of animal species, with over one thousand counted so far. About 13,000 species are added to the list of known organisms each year.
482:, mining, nuclear accidents, pesticides, pollution, waste and over-population. Despite taking hundreds of measures, the rate of environmental issues is increasing rapidly instead of reducing. The United States is among the most significant emitters of greenhouse gasses in the world. In terms of both total and
762:
both have similar definitions and broad categories, preservation in the natural and environmental scope refers to the action of keeping areas the way they are and trying to dissuade the use of its resources; conservation may employ similar methods but does not call for the diminishing of resource use
61:
movement have emerged to respond to the various threats to the environment. These movements are intertwined with a long history of conservation, starting in the early 19th century, that has resulted in a robust network of protected areas, including 28.8% of land managed by the
Federal government.
422:
have been established around the country to ensure long-term protection of pristine habitats. Altogether, the U.S. government regulates 1,020,779 square miles (2,643,807 km), 28.8% of the country's total land area. Protected parks and forestland constitute most of this. As of March 2004,
249:
The United States mainland contains a total of seven distinct regional climates. Those include high elevation
Northwestern region, the Pacific Northwest, the High plains, Midwest/Ohio valley/New England, Mid Atlantic/Southeast, Southern region, and Southwestern region. Each region contains
215:. Its comparatively generous climate contributed (in part) to the country's rise as a world power, with infrequent severe drought in the major agricultural regions, a general lack of widespread flooding, and a mainly temperate climate that receives adequate precipitation.
42:
comprises diverse biotas, climates, and geologies. This diversity leads to a number of different distinct regions and geographies in which human communities live. This includes a rich variety of species of animals, fungi, plants and other organisms.
2046:
93:
There are about 21,717 different species of native plants and animals in the United States. More than 400 mammal, 700 bird, 500 reptile and amphibian, and 90,000 insect species have been documented. Wetlands, such as the
Florida
847:
2039:
374:
2032:
46:
Because of the strong forces of economic exploitation and industrialization, humans have had deep effects on the ecosystems of the United States, resulting in a number of environmental issues.
411:
as well as other preservation areas, such as the
Florida Everglades. There are more than 400 protected sites spread across 84 million acres but very few are large enough to contain ecosystems.
1576:
578:
1908:
1552:
842:
601:
325:
609:
590:
1279:
947:
1171:
920:
Farr, D.F, Bills, G.F., Chamuris, G.P. and
Rossman, A.Y. "Fungi on Plants and Plant Products in the United States". 1252 pp., APS Press, St Paul Minnesota, USA, 1989
909:
2400:
574:
106:
Around 14,000 species of fungi were listed by Farr, Bills, Chamuris and
Rossman in 1989. Still, this list only included terrestrial species. It did not include
1465:"A Probabilistic Approach for Characterization of Sub-Annual Socioeconomic Drought Intensity-Duration-Frequency (IDF) Relationships in a Changing Environment"
519:
1773:"Contiguous U.S. ranked fifth warmest during 2020; Alaska experienced its coldest year since 2012 / 2020 Billion Dollar Disasters and Other Notable Extremes"
1284:(FIg. 3) EPA's data source: NOAA (National Oceanic and Atmospheric Administration). 2021. Climate at a glance. Accessed February 2021. www.ncdc.noaa.gov/cag.
832:
1795:
827:
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a larger share than any country of the greenhouse gases causing current climate change, with some 20% of the global total of carbon dioxide alone. Current
444:
1341:
1292:
110:-forming fungi, fungi on dung, freshwater fungi, marine fungi or many other categories. Fungi are essential to the survival of many groups of organisms.
1087:
582:
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613:
437:
150:
that often harm indigenous communities of living things. Many indigenous species became extinct soon after the first human settlement, including the
989:
239:
1866:
1646:
1223:
70:
659:
349:
1573:
732:, as a movement, began with the American sportsmen who came to the realization that wanton waste of wildlife and their habitat had led to the
508:
118:
With habitats ranging from tropical to Arctic, U.S. plant life is very diverse. The country has more than 17,000 identified native species of
1985:
1931:
705:
generally refers to the act of consciously and efficiently using land and/or its natural resources. This can be in the form of setting aside
655:
617:
551:
1900:
1600:
563:
555:
402:
378:
523:
Warming over time: Annual temperatures averaged across the U.S. have exceeded the 1971–2000 average almost every year in the 21st century.
2115:
512:
501:
487:
427:
administration was being leased for commercial oil and natural gas drilling; public land is also leased for mining and cattle ranching.
1839:
1544:
2526:
2421:
605:
479:
2646:
2616:
2521:
2367:
1120:"Abuse of Trust: A Brief History of the Bush Administration's Disastrous Oil and Gas Development Policies in the Rocky Mountain West"
2393:
2300:
2015:
1780:
961:
694:
677:
593:. In 2021, the country set a target of halving its annual greenhouse gas emissions by 2030, however oil and gas companies still get
313:
1314:
1027:
600:
Climate change is having considerable impacts on the environment and society of the United States. This includes implications for
2641:
2357:
2339:
837:
180:
1382:"Assessing Shifts in Regional Hydroclimatic Conditions of U.S. River Basins in Response to Climate Change over the 21st Century"
2571:
2225:
1035:
822:
300:
2621:
1788:"Calculating the Cost of Weather and Climate Disasters / Seven things to know about NCEI's U.S. billion-dollar disasters data"
632:
are generally experiencing greater impacts. 2020 was a historic year for billion-dollar weather and climate disasters in U.S.
1438:
1271:
382:
933:
Our Living
Resources: a report to the nation on the distribution, abundance, and health of US plants, animals and ecosystems
2461:
1163:
2511:
2265:
2230:
559:
230:, has strained water and power resources, with water diverted from agricultural uses to major population centers, such as
2386:
2305:
2210:
2170:
543:
539:
355:
260:
171:
2576:
418:. Another fifty-seven national parks and hundreds of other federally managed parks and forests have since been formed.
393:
2270:
2260:
2255:
2235:
2611:
2331:
1022:
2631:
2466:
2426:
2347:
2185:
2100:
639:
227:
83:
79:
2626:
709:
of land for protection from hunting or urban development, or it can take the form of using less resources such as
162:. Many plants and animals have declined dramatically as a result of massive conversion and other human activity.
2636:
2446:
2220:
2215:
2090:
1757:
643:
629:
424:
415:
32:
2606:
2516:
2362:
1787:
2601:
2596:
2591:
2501:
2476:
2310:
2275:
2180:
2155:
1333:
1288:
127:
2586:
1718:
1094:
2551:
2456:
2581:
2566:
2561:
2491:
2486:
2471:
2431:
2295:
2245:
2200:
2190:
2175:
2165:
2150:
2130:
2105:
2095:
2085:
1004:
780:
768:
749:
343:
1062:
2556:
2315:
2290:
2195:
2135:
2110:
2080:
2070:
1605:
688:
337:
50:
2352:
2024:
986:
2506:
2496:
2441:
2436:
2250:
2205:
2145:
2120:
2075:
1628:
1198:
883:
759:
663:
151:
58:
456:
2481:
2280:
2160:
2125:
2019:
1393:
815:
702:
471:
319:
123:
2451:
2285:
2240:
2140:
464:
emissions, total by country (2017 data) shows the U.S. trails China in total annual emissions (not
204:
1693:
1419:
941:
803:
753:
647:
370:
1813:
936:. Washington, DC: US Department of the Interior, National Biological Service. pp. 205–209.
1981:
1927:
1874:
1411:
1119:
306:
231:
223:
159:
134:
trees in the world). Three quarters of the United States species consist of flowering plants.
49:
Since awareness of these issues emerged in the 1970s, environmental regulations and a growing
965:
222:, cities in the southern and western region experienced an economic and population boom. The
2325:
1840:"Exxon knew of climate change in 1981, email says – but it funded deniers for 27 more years"
1749:
1685:
1654:
1476:
1401:
871:
798:
621:
515:
Average temperatures in almost all regions in the U.S. have increased in the last 120 years.
131:
54:
1580:
1320:
993:
896:
776:
586:
547:
419:
331:
279:
176:
1772:
1996:
Environmental and
Renewable Energy Innovation Potential Among the States: State Rankings
1719:"States Blocking Climate Action Hold Residents Who Suffer the Most From Climate Impacts"
1397:
1249:
1039:
267:
1978:
The environmental debate a documentary history, with timeline, glossary, and appendices
1306:
635:
625:
567:
527:
243:
155:
147:
2003:
Factors
Affecting States' Ranking on the 2007 Forbes List of America's Greenest States
1629:"The Zombies of the U.S. Tax Code: Why Fossil Fuels Subsidies Seem Impossible to Kill"
2661:
1926:(Third ed.). Oregon State University Press. pp. 4, 150–74, 180–87, 165–71.
1740:
Smith, Adam B.; NOAA National
Centers For Environmental Information (December 2020).
1697:
1677:
1423:
729:
698:
475:
408:
275:
38:
23:
1142:
930:
Morse, L. E., Kartesz, J. T., & Kutner, L. S. (1995). "Native vascular plants".
1844:
1809:
1179:
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endorses conservation, simply defined as an "intelligent use of natural resources."
651:
219:
200:
1463:
Heidari, Hadi; Arabi, Mazdak; Ghanbari, Mahshid; Warziniack, Travis (June 2020).
1180:"List of the populations of the world's countries, dependencies, and territories"
931:
546:. From 2010 to 2019, the United States experienced its hottest decade on record.
250:
different states and has their own climate and temperatures throughout the year.
867:
772:
764:
763:
but rather calls for a responsible way of going about it. A distinction between
745:
722:
235:
212:
2378:
1689:
1948:
733:
594:
483:
283:
208:
154:; others have become nearly extinct since European settlement, among them the
143:
95:
1878:
1415:
1545:"Analysis: Which countries are historically responsible for climate change?"
741:
448:
Of the major greenhouse gas emitting nations, the U.S. is among the highest
362:
1901:"Six in 10 Americans 'alarmed' or 'concerned' about climate change – study"
1742:"Billion-Dollar Weather and Climate Disasters: Overview / 2020 in Progress"
875:
1380:
Heidari, Hadi; Arabi, Mazdak; Warziniack, Travis; Kao, Shih-Chieh (2020).
1355:
1497:
1406:
1381:
706:
478:
include climate change, energy, species conservation, invasive species,
18:
2002:
1995:
1753:
1748:. National Centers for Environmental Information (NCDC, part of NOAA).
1523:
848:
Timeline of major U.S. environmental and occupational health regulation
737:
697:
can be traced back to the 19th century with the formation of the first
684:
287:
271:
Shaded relief map of the United States, showing 10 geological provinces
192:
1741:
1481:
1464:
1601:"New momentum reduces emissions gap, but huge gap remains - analysis"
1028:"Geologic Provinces of the United States: Records of an Active Earth"
196:
188:
107:
714:
710:
683:
518:
507:
455:
443:
392:
266:
119:
17:
1250:"US election 2020: What the results will mean for climate change"
1647:"Climate Change and US National Security: Past, Present, Future"
1164:"Who Has The Most Historical Responsibility for Climate Change?"
721:. Usually, this process of conservation occurs through or after
718:
242:, if more supplies are not found by 2020, residents will face a
2382:
2028:
666:
although the majority are concerned or alarmed about the issue.
1867:"A third of Americans deny human-caused climate change exists"
1678:"US climate costs will be highest in Republican strongholds"
414:
In 1872, the world's first national park was established at
870:. U.S. Dept. of the Interior, National Biological Service.
542:
is shifting in ways that are widespread and varied between
1093:. Republican Study Committee. May 19, 2005. Archived from
187:
The U.S. climate is temperate in most areas, tropical in
1439:"Climate Change Indicators: U.S. and Global Temperature"
1272:"Climate Change Indicators: U.S. and Global Temperature"
74:
Bioregions of Northern America, according to one scheme.
486:
emissions, it is among the largest contributors. The
748:
started the modern movement, history shows that the
2540:
2414:
2338:
2324:
2063:
2005:. Applied Research Project, Texas State University.
1998:. Applied Research Project. Texas State University.
1162:Popovich, Nadja; Plumer, Brad (November 12, 2021).
843:
National Environmental Information Exchange Network
326:
Federal Insecticide, Fungicide, and Rodenticide Act
1924:American Sportsmen and the Origins of Conservation
608:(especially the affordability and availability of
585:have been introduced, and the US has ratified the
756:, spearheaded conservation in the United States.
1498:"Climate Change Indicators in the United States"
987:A World Without Water -Global Policy Forum- NGOs
1199:"Global Greenhouse Gas Emissions Data | US EPA"
1976:Neimark, Peninah; Mott, Peter Rhoades (2011).
246:nearly as great as the amount consumed today.
2394:
2040:
1524:"Climate Change and Invasive Species - NISAW"
662:, as recently as 2021 one-third of Americans
564:Climate change's impacts on tropical cyclones
122:, including 5,000 in California (home to the
8:
946:: CS1 maint: multiple names: authors list (
833:List of Superfund sites in the United States
664:deny that human-caused climate change exists
654:could cause global warming but nevertheless
628:per person and introduce policies to oppose
581:are among the largest in the world. Various
1721:. Climate Nexus, Ecowatch. October 29, 2019
828:Environmental movement in the United States
530:has led to the United States warming by 2.6
2401:
2387:
2379:
2047:
2033:
2025:
1814:"Exxon Mobil and the G.O.P.: Fossil Fools"
1480:
1405:
1278:. Environmental Protection Agency. 2021.
1158:(choose "Chart view"; use download link)
910:Number of Native Species in United States
583:state and federal climate change policies
438:Environmental issues in the United States
397:United States National Marine Sanctuaries
1282:from the original on December 30, 2021.
650:have known since the 1970s that burning
240:California Department of Water Resources
175:
69:
1317:from the original on February 25, 2023.
1174:from the original on December 29, 2021.
1063:"10 Ways Humans Impact the Environment"
858:
725:on local or national levels is passed.
423:approximately 16% of public land under
369:The Endangered Species Act of protects
1911:from the original on January 14, 2022.
1798:from the original on January 11, 2022.
1760:from the original on December 10, 2020
1555:from the original on December 23, 2021
1088:"Federal Land and Buildings Ownership"
1005:Regional Climates in the United States
939:
892:
881:
350:Resource Conservation and Recovery Act
278:is a product of the dueling forces of
1783:from the original on January 8, 2021.
1676:Tollefson, Jeff (February 12, 2019).
1160:â—Ź Data for 2020 is also presented in
740:, while other species were at risk.
570:also affects regions of the country.
274:The richly textured landscape of the
7:
1838:Goldenberg, Suzanne (July 8, 2015).
1344:from the original on April 20, 2022.
403:Protected areas of the United States
309:were enacted between 1969 and 1980:
962:"Pleistocene Megafauna Extinctions"
502:Climate change in the United States
490:has a major influence on the world.
488:climate policy of the United States
1522:Casagr, Tina (February 16, 2022).
1334:"Earth Day: U.S. Warming Rankings"
1248:McGrath, Matt (October 20, 2020).
1177:â—Ź Source for country populations:
1122:. Wilderness Society. May 28, 2007
646:in the country in recent decades.
295:Environmental law and conservation
14:
1627:Friedman, Lisa (March 15, 2024).
964:. Cpluhna.nau.edu. Archived from
695:Conservation in the United States
678:Conservation in the United States
658:. Despite the support of a clear
638:issue, climate change has become
314:National Environmental Policy Act
2668:Environment of the United States
2522:Saint Vincent and the Grenadines
2056:Environment of the United States
1980:. Amenia, N.Y.: Grey House Pub.
1496:US EPA, OAR (November 6, 2015).
1197:EPA, OA, US (January 12, 2016).
1021: This article incorporates
1016:
838:National Conservation Exposition
809:
797:
676:This section is an excerpt from
500:This section is an excerpt from
436:This section is an excerpt from
259:This section is an excerpt from
146:include thousands of non-native
1899:Yang, Maya (January 13, 2021).
1307:"Temperature change in the USA"
1224:"United States: Climate Policy"
1036:United States Geological Survey
823:Ecotourism in the United States
301:United States environmental law
383:U.S. Fish and Wildlife Service
1:
2409:Environment of North America
1437:US EPA, OAR (June 27, 2016).
573:Cumulatively since 1850, the
513:Geographic extent of warming:
381:, which are monitored by the
22:The United States is part of
2647:United States Virgin Islands
540:climate of the United States
407:The United States maintains
356:Toxic Substances Control Act
261:Geology of the United States
172:Climate of the United States
1067:interestingengineeering.com
624:. US States that emit more
207:, Mediterranean in coastal
2684:
1690:10.1038/d41586-019-00327-2
1186:. Encyclopedia Britannica.
675:
622:a national security threat
499:
435:
400:
298:
258:
169:
84:Flora of the United States
80:Fauna of the United States
77:
2622:Saint Pierre and Miquelon
1356:"Sixth Assessment Report"
1032:USGS Geology in the Parks
866:Laroe, Edward T. (1995).
425:Bureau of Land Management
2642:Turks and Caicos Islands
2358:Northern Mariana Islands
1922:Reiger, John F. (2001).
1574:www.climatewatchdata.org
1061:Baker, Maverick (2016).
1007:March 21, 2018 USA Today
816:United States portal
775:was and is considered a
656:funded deniers for years
634:Although historically a
152:North American megafauna
781:Boone and Crockett Club
769:Boone and Crockett Club
758:While conservation and
750:Boone and Crockett Club
591:temporarily withdrawing
579:US emissions per person
344:Safe Drinking Water Act
2572:British Virgin Islands
1779:. NOAA. January 2021.
1606:Climate Action Tracker
1289:Direct link to graphic
1023:public domain material
992:July 12, 2007, at the
891:Cite journal requires
876:10.5962/bhl.title.4172
868:"Our Living Resources"
804:Environment portal
691:
689:Yosemite National Park
524:
516:
469:
453:
398:
338:Endangered Species Act
272:
184:
138:Human impacts on biota
75:
51:environmental movement
27:
2512:Saint Kitts and Nevis
2058:by political division
2001:Tresner, Erin. 2009.
1947:Roosevelt, Theodore.
1392:(10): e2020EF001657.
1147:GlobalCarbonAtlas.org
1143:"Territorial (MtCO2)"
779:organization whereas
687:
522:
511:
459:
447:
396:
270:
179:
73:
59:environmental justice
21:
2020:Pew Charitable Trust
1994:Reed, Daniel. 2009.
1812:(November 5, 2015).
1407:10.1029/2020EF001657
1311:ShowYourStripes.info
1305:Hawkins, Ed (2023).
728:Conservation in the
660:scientific consensus
644:politically divisive
620:, and it is seen as
538:°C) since 1970. The
472:Environmental issues
431:Environmental issues
181:Köppen climate types
2527:Trinidad and Tobago
2422:Antigua and Barbuda
2368:U.S. Virgin Islands
1794:. October 6, 2017.
1651:atlanticcouncil.org
1551:. October 5, 2021.
1398:2020EaFut...801657H
305:The nation's major
238:. According to the
2462:Dominican Republic
1953:Wilderness Society
1818:The New York Times
1754:10.25921/stkw-7w73
1633:The New York Times
1579:2021-06-24 at the
1340:. April 20, 2022.
1168:The New York Times
754:Theodore Roosevelt
692:
618:indigenous peoples
525:
517:
470:
454:
399:
375:endangered species
307:environmental laws
273:
199:, semiarid in the
185:
76:
28:
2655:
2654:
2544:other territories
2376:
2375:
1987:978-1-78034-241-2
1933:978-0-87071-487-0
1482:10.3390/w12061522
224:population growth
160:California condor
53:, including both
2675:
2612:Saint Barthélemy
2542:Dependencies and
2415:Sovereign states
2403:
2396:
2389:
2380:
2332:Washington, D.C.
2326:Federal district
2049:
2042:
2035:
2026:
1991:
1964:
1963:
1961:
1959:
1944:
1938:
1937:
1919:
1913:
1912:
1896:
1890:
1889:
1887:
1885:
1873:. July 8, 2021.
1863:
1857:
1856:
1854:
1852:
1835:
1829:
1828:
1826:
1824:
1806:
1800:
1799:
1784:
1769:
1767:
1765:
1737:
1731:
1730:
1728:
1726:
1715:
1709:
1708:
1706:
1704:
1673:
1667:
1666:
1664:
1662:
1657:. March 29, 2016
1655:Atlantic Council
1643:
1637:
1636:
1624:
1618:
1617:
1615:
1613:
1597:
1591:
1571:
1565:
1564:
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1510:
1508:
1493:
1487:
1486:
1484:
1460:
1454:
1453:
1451:
1449:
1434:
1428:
1427:
1409:
1377:
1371:
1370:
1368:
1366:
1352:
1346:
1345:
1330:
1324:
1318:
1302:
1296:
1286:
1268:
1262:
1261:
1259:
1257:
1245:
1239:
1238:
1236:
1234:
1228:Encyclopedia.com
1220:
1214:
1213:
1211:
1209:
1194:
1188:
1187:
1175:
1157:
1155:
1153:
1138:
1132:
1131:
1129:
1127:
1116:
1110:
1109:
1107:
1105:
1099:
1092:
1084:
1078:
1077:
1075:
1073:
1058:
1052:
1051:
1049:
1047:
1042:on June 25, 2013
1038:. Archived from
1020:
1019:
1014:
1008:
1002:
996:
984:
978:
977:
975:
973:
968:on March 8, 2010
958:
952:
951:
945:
937:
927:
921:
918:
912:
907:
901:
900:
894:
889:
887:
879:
863:
814:
813:
812:
802:
801:
575:U.S. has emitted
562:are increasing.
552:invasive species
537:
533:
420:Wilderness areas
211:and arid in the
55:climate movement
2683:
2682:
2678:
2677:
2676:
2674:
2673:
2672:
2658:
2657:
2656:
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2059:
2053:
2012:
1988:
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1970:Further reading
1967:
1957:
1955:
1949:"Famous Quotes"
1946:
1945:
1941:
1934:
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1786:
1785:For 2021 data:
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1581:Wayback Machine
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1321:warming stripes
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1100:on May 24, 2010
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777:preservationist
681:
673:
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587:Paris Agreement
548:Extreme weather
535:
531:
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463:
441:
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389:Protected areas
332:Clean Water Act
303:
297:
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280:plate tectonics
264:
256:
244:water shortfall
174:
168:
140:
116:
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91:
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78:Main articles:
68:
12:
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5:
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2629:
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2577:Cayman Islands
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2398:
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2383:
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2355:
2350:
2348:American Samoa
2344:
2342:
2336:
2335:
2330:
2328:
2322:
2321:
2319:
2318:
2313:
2308:
2303:
2298:
2293:
2288:
2283:
2278:
2273:
2268:
2266:South Carolina
2263:
2258:
2253:
2248:
2243:
2238:
2233:
2231:North Carolina
2228:
2223:
2218:
2213:
2208:
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2198:
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2010:External links
2008:
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528:Climate change
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409:national parks
401:Main article:
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170:Main article:
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148:exotic species
142:The country's
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2169:
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1868:
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1810:Egan, Timothy
1805:
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1797:
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1792:ncei.noaa.gov
1789:
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699:National Park
696:
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648:Oil companies
645:
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640:controversial
637:
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480:deforestation
477:
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360:
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321:
320:Clean Air Act
318:
315:
312:
311:
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302:
294:
289:
285:
281:
277:
276:United States
269:
262:
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247:
245:
241:
237:
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225:
221:
216:
214:
210:
206:
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198:
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191:and southern
190:
182:
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161:
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149:
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137:
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52:
47:
44:
41:
40:
39:United States
35:
34:
25:
24:North America
20:
16:
2637:Sint Maarten
2617:Saint Martin
2531:
2363:Puerto Rico
2271:South Dakota
2261:Rhode Island
2256:Pennsylvania
2236:North Dakota
2055:
1977:
1956:. Retrieved
1952:
1942:
1923:
1917:
1905:The Guardian
1904:
1894:
1884:December 30,
1882:. Retrieved
1870:
1861:
1849:. Retrieved
1845:The Guardian
1843:
1833:
1821:. Retrieved
1817:
1804:
1791:
1776:
1764:December 11,
1762:. Retrieved
1745:
1735:
1723:. Retrieved
1713:
1701:. Retrieved
1681:
1671:
1659:. Retrieved
1650:
1641:
1632:
1622:
1610:. Retrieved
1604:
1595:
1588:
1585:Calculations
1584:
1569:
1559:December 30,
1557:. Retrieved
1549:Carbon Brief
1548:
1539:
1527:. Retrieved
1517:
1505:. Retrieved
1501:
1491:
1472:
1468:
1458:
1446:. Retrieved
1442:
1432:
1389:
1385:
1375:
1363:. Retrieved
1359:
1350:
1337:
1328:
1310:
1300:
1283:
1275:
1266:
1254:. Retrieved
1243:
1231:. Retrieved
1227:
1218:
1206:. Retrieved
1202:
1192:
1183:
1167:
1152:December 30,
1150:. Retrieved
1146:
1136:
1124:. Retrieved
1114:
1102:. Retrieved
1095:the original
1082:
1070:. Retrieved
1066:
1056:
1044:. Retrieved
1040:the original
1031:
1012:
1000:
982:
970:. Retrieved
966:the original
956:
932:
925:
916:
905:
884:cite journal
861:
786:
760:preservation
752:, formed by
727:
703:Conservation
693:
671:Conservation
636:non-partisan
614:human health
599:
572:
526:
465:
449:
413:
406:
368:
365:" Act (1980)
304:
248:
220:World War II
217:
203:west of the
201:Great Plains
186:
141:
128:most massive
117:
105:
92:
48:
45:
37:
31:
29:
15:
2607:Puerto Rico
2517:Saint Lucia
2467:El Salvador
2340:Territories
2186:Mississippi
2101:Connecticut
2016:Environment
1958:January 23,
1851:November 9,
1823:November 9,
1725:October 31,
1703:October 28,
1589:per capita.
1502:www.epa.gov
1475:(6): 1522.
1443:www.epa.gov
1360:www.ipcc.ch
1319:— Based on
1256:November 1,
1233:November 1,
972:January 31,
773:Sierra Club
765:Sierra Club
746:Sierra Club
723:legislation
652:oil and gas
602:agriculture
416:Yellowstone
236:Los Angeles
213:Great Basin
195:, polar in
33:environment
2602:Montserrat
2597:Martinique
2592:Guadeloupe
2447:Costa Rica
2301:Washington
2221:New Mexico
2216:New Jersey
2091:California
1448:August 20,
1365:August 20,
854:References
734:extinction
595:tax breaks
484:per capita
466:per capita
450:per person
371:threatened
284:weathering
218:Following
209:California
144:ecosystems
130:, and the
96:Everglades
2587:Greenland
2502:Nicaragua
2477:Guatemala
2311:Wisconsin
2276:Tennessee
2181:Minnesota
2156:Louisiana
1879:0013-0613
1746:NCDC.NOAA
1698:188147110
1612:April 27,
1424:225251957
1416:2328-4277
1072:March 24,
942:cite book
742:John Muir
610:insurance
460:Annual CO
452:emitters.
363:Superfund
232:Las Vegas
228:Southwest
183:of the US
2662:Category
2552:Anguilla
2487:Honduras
2457:Dominica
2432:Barbados
2296:Virginia
2246:Oklahoma
2226:New York
2201:Nebraska
2191:Missouri
2176:Michigan
2166:Maryland
2151:Kentucky
2131:Illinois
2106:Delaware
2096:Colorado
2086:Arkansas
1909:Archived
1796:Archived
1781:Archived
1758:Archived
1577:Archived
1553:Archived
1529:July 29,
1507:July 29,
1342:Archived
1323:concept.
1315:Archived
1280:Archived
1208:June 13,
1172:Archived
1126:June 11,
1104:June 13,
990:Archived
791:See also
771:is that
744:and the
736:of some
589:despite
560:droughts
550:events,
57:and the
2582:Curaçao
2567:Bonaire
2562:Bermuda
2492:Jamaica
2472:Grenada
2427:Bahamas
2316:Wyoming
2291:Vermont
2196:Montana
2136:Indiana
2116:Georgia
2111:Florida
2081:Arizona
2071:Alabama
2018:at the
1587:select
1394:Bibcode
1293:archive
1276:EPA.gov
1046:May 12,
738:species
606:economy
544:regions
534:°F (1.4
474:in the
288:erosion
254:Geology
226:in the
193:Florida
166:Climate
124:tallest
89:Animals
36:of the
2507:Panama
2497:Mexico
2442:Canada
2437:Belize
2251:Oregon
2206:Nevada
2146:Kansas
2121:Hawaii
2076:Alaska
2064:States
1984:
1930:
1877:
1696:
1682:Nature
1422:
1414:
1203:US EPA
707:tracts
616:, and
604:, the
556:floods
536:
532:
358:(1976)
352:(1976)
346:(1974)
340:(1973)
334:(1972)
328:(1972)
322:(1970)
316:(1969)
197:Alaska
189:Hawaii
132:oldest
126:, the
114:Plants
108:lichen
2557:Aruba
2482:Haiti
2281:Texas
2161:Maine
2126:Idaho
1694:S2CID
1583:, at
1469:Water
1420:S2CID
1252:. BBC
1098:(PDF)
1091:(PDF)
1025:from
717:, or
715:water
711:metal
120:flora
102:Fungi
66:Biota
2627:Saba
2452:Cuba
2353:Guam
2286:Utah
2241:Ohio
2141:Iowa
1982:ISBN
1960:2017
1928:ISBN
1886:2021
1875:ISSN
1853:2015
1825:2015
1770:and
1766:2020
1727:2019
1705:2020
1663:2016
1614:2021
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