Despite the support of a clear scientific consensus, as of 2021 one third of Americans deny that human-caused climate change exists although the majority are concerned or alarmed about the issue. Oil companies have known since the 1970s that burning oil and gas could cause global warming but nevertheless funded deniers for years. Īlthough historically a non-partisan issue, climate change has become controversial and politically divisive in the country in recent decades. 2020 was a historic year for billion-dollar weather and climate disasters in U.S. States that emit more carbon dioxide per person and introduce policies to oppose climate action are generally experiencing greater impacts. This includes implications for agriculture, the economy, human health and indigenous peoples, and it is seen as a national security threat. Ĭlimate change is having considerable impacts on the environment and society of the United States. In 2021, the country set a target of halving its annual greenhouse gas emissions by 2030. Various state and federal climate change policies have been introduced, and the US has ratified the Paris Agreement despite temporarily withdrawing. Current US emissions per person are among the largest in the world. has emitted 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. Climate change's impacts on tropical cyclones and sea level rise also affects regions of the country.Ĭumulatively since 1850, the U.S. Extreme weather events, invasive species, floods and droughts are increasing. From 2010 to 2019, the United States experienced its hottest decade on record. The climate of the United States is shifting in ways that are widespread and varied between regions. Ĭlimate change has led to the United States warming by 2.6 ☏ (1.4 ☌) since 1970. have exceeded the 1971–2000 average almost every year in the 21st century. Warming over time: Annual temperatures averaged across the U.S. Emissions, impacts and responses of the United States related to climate change Geographic extent of warming: Average temperatures in almost all regions in the U.S.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |