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Spacewatch was founded in 1980 by Tom Gehrels and Robert S. McMillan, and is currently led by astronomer Melissa Brucker at the University of Arizona. Spacewatch uses several telescopes on Kitt Peak for follow-up observations of near-Earth objects. [3] The Spacewatch Project uses three telescopes of apertures 0.9-m, 1.8-m, and 2.3-m.
The climate change policy of the United States has major impacts on global climate change and global climate change mitigation.This is because the United States is the second largest emitter of greenhouse gasses in the world after China, and is among the countries with the highest greenhouse gas emissions per person in the world.
Köppen climate types of the United States. The climate of the United States varies due to changes in latitude, and a range of geographic features, including mountains and deserts. Generally, on the mainland, the climate of the U.S. becomes warmer the farther south one travels, and drier the farther west, until one reaches the West Coast.
There are many effects of climate change on oceans. One of the most important is an increase in ocean temperatures. More frequent marine heatwaves are linked to this. The rising temperature contributes to a rise in sea levels due to the expansion of water as it warms and the melting of ice sheets on land.
The new map is based on 30-year averages of the lowest annual winter temperature in a particular location. ... planthardiness.ars.usda.gov and click on Ohio on the interactive map of the United ...
The United States Environmental Protection Agency has noted that "[m]ost of the state has warmed one to three degrees (F) (0.5 - 2 °C) in the last century", [5] and New York State Department of Environmental Conservation has further observed that "[t]he annual average temperature statewide has risen about 2.4 °F (1.3 °C) since 1970, with winter warming exceeding 4.4 °F" (2.4 °C).
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 ...
Sea surface height change from 1992 to 2019: Blue regions are where sea level has gone down, and orange/red regions are where sea level has risen (the visualization is based on satellite data). [ 2 ] Between 1901 and 2018, the average sea level rose by 15–25 cm (6–10 in), with an increase of 2.3 mm (0.091 in) per year since the 1970s.