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The United States is among the most significant emitters of greenhouse gasses in the world. In terms of both total and per capita emissions, it is among the largest contributors. [2] The climate policy of the United States has a major influence on the world. [3] [4]
2020s in United States history is a narrative summary of major historical events and issues in the United States from January 1, 2020, through December 31, 2029. The first part is divided chronologically by Congressional sessions and the second part highlights major issues that span several years or even the entire decade.
Climate change has led to the United States warming by 2.6 °F (1.4 °C) since 1970. [3] The climate of the United States is shifting in ways that are widespread and varied between regions. [4] [5] From 2010 to 2019, the United States experienced its hottest decade on record. [6] Extreme weather events, invasive species, floods and droughts are ...
The space policy of the United States involves the civilian and military use of outer space. Civilian space policy is overseen and carried out by NASA. The United States Space Force is the outer space division of the United States Armed Forces. The United States is subject to several international treaties that influence its space policy.
The issue of greenhouse gas emissions and climate change is inherently global in nature, transcending national borders and affecting countries worldwide, including the United States. The impact of greenhouse gas emissions is not solely determined by the actions of any single nation; rather, it is the result of cumulative emissions from multiple ...
2010s in United States history is the compiled history of major historical events and issues in the United States from January 1, 2010, through December 31, 2019. Overview [ edit ]
Even compared to countries that have similar cultures, demographics, education, and other mental health issues, the United States stands out as a dangerous and uniquely ambivalent country when it ...
This is a list of conflicts in the United States. Conflicts are arranged chronologically from the late modern period to contemporary history . This list includes (but is not limited to) the following: Indian wars , skirmishes , wars of independence , liberation wars , colonial wars , undeclared wars , proxy wars , territorial disputes , and ...