![]() Alaska is the fastest-warming state in the country, but Rhode Island is the first state in the Lower 48 whose average temperature rise has eclipsed 2 degrees Celsius (3.6 degrees Fahrenheit). Seventy-one counties have already hit the 2-degree Celsius (3.6-degree Fahrenheit) mark. Today, more than 1 in 10 Americans - 34 million people - are living in rapidly heating regions, including New York City and Los Angeles. ![]() The United Nations Intergovernmental Panel on Climate Change warns that if Earth heats up by an average of 2 degrees Celsius (3.6 degrees Fahrenheit), virtually all the world’s coral reefs will die retreating ice sheets in Greenland and Antarctica could unleash massive sea level rise and summertime Arctic sea ice, a shield against further warming, would begin to disappear.īut global warming does not heat the world evenly.Ī Washington Post analysis of more than a century of National Oceanic and Atmospheric Administration temperature data across the Lower 48 states and 3,107 counties has found that major areas are nearing or have already crossed the 2-degree Celsius (3.6-degree Fahrenheit) mark. In the 2015 Paris accord, international leaders agreed that the world should act urgently to keep the Earth’s average temperature increases “well below” 2 degrees Celsius (3.6 degrees Fahrenheit) by the year 2100 to avoid a host of catastrophic changes. Over the past two decades, the 2 degrees Celsius (3.6 degrees Fahrenheit) number has emerged as a critical threshold for global warming. Insulated trains, such as this ice car from around 1910, brought the ice from New Jersey to New York City.
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