2017 Was the Year of the Billion-Dollar Disaster

Rather than one type of event focused on one part of the country, this year’s disasters were spread over several regions. Climate change may have worsened some of the events this year, including drought in the northern Plains and wildfires in the West. In a warming world, soils dry out more from evaporation, making droughts worse and further drying

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Here’s Where Winters Are Warming the Most

Winters are warming across the U.S., and in some locations, the warming is dramatic. The Northern Plains, Great Lakes, and the Northeast are warming the fastest, while warming is taking place at a slower rate in the western U.S. In parts of Minnesota, Wisconsin, and northern New England winters have warmed at an average rate of more than 1°F per

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2017 U.S. Temperature Review

2017 finished as the third-hottest year in the U.S. since NOAA records began in 1895, with an average temperature 2.56°F above the 20th century mean. Some cities had their hottest year on record, including Albuquerque, Cleveland, Dallas, Phoenix, and Tampa. Moreover, the U.S. is having its warmest consecutive 24, 36, and 48 months on record, with

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The Number and Cost of Weather Disasters is Increasing in the U.S.

Climate change is increasing the trend in weather and climate extremes in the U.S. A NOAA/NCEI report indicates that through September, the U.S. has had 15 individual billion-dollar weather disasters in 2017. Only 2011 had more billion-dollar disasters with 16, and that was through the entire year. Even without the final calculations from Harvey,

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2017 was the third-warmest year on record in the U.S.

The 10 Hottest U.S. Years on Record

Some cities had their hottest year on record, including Albuquerque, Cleveland, Dallas, Phoenix, and Tampa. Moreover, the U.S. is having its warmest consecutive 24, 36, and 48 months on record, with more than 33,000 record highs set in each of the last three years. This total dwarfs the number of record lows set in that three-year period at a rate

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temperature review

2017 U.S. Temperature Review

2017 finished as the third-hottest year in the U.S. since NOAA records began in 1895, with an average temperature 2.56°F above the 20th century mean. Some cities had their hottest year on record, including Albuquerque, Cleveland, Dallas, Phoenix, and Tampa. Moreover, the U.S. is having its warmest consecutive 24, 36, and 48 months on record, with

more
weather disasters

2017 Was the Year of the Billion-Dollar Disaster

Rather than one type of event focused on one part of the country, this year’s disasters were spread over several regions. Climate change may have worsened some of the events this year, including drought in the northern Plains and wildfires in the West. In a warming world, soils dry out more from evaporation, making droughts worse and further drying

more
cost of weather disasters

The Number and Cost of Weather Disasters is Increasing in the U.S.

Climate change is increasing the trend in weather and climate extremes in the U.S. A NOAA/NCEI report indicates that through September, the U.S. has had 15 individual billion-dollar weather disasters in 2017. Only 2011 had more billion-dollar disasters with 16, and that was through the entire year. Even without the final calculations from Harvey,

more
white christmas in presque isle

Will You Have a White Christmas?

White Christmas is defined here as having at least an inch of snow on the ground on Christmas Day. In addition, the analysis includes the record highest snow depth in each city on Christmas Day. But as the world warms, the overall area of North America covered by snow is decreasing. One reason is because an increasing percentage of winter

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snow cover

North American Snow Cover on the Decline

As the world warms, the overall area of North America covered by snow is decreasing. One reason is because an increasing percentage of winter precipitation is falling as rain instead of snow in many locations. A Climate Central report found that between sea level and 5,000 feet in elevation across the Western U.S., a smaller percentage of winter

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record temperatures

Daily Record Highs are Dramatically Outpacing Daily Record Lows

Daily record highs are vastly outpacing daily record lows in the U.S. We will always have warm years and cold years, but in a world without global warming, those warm and cold years would balance over time. However, that’s not what we are seeing. According to the 2017 U.S. Climate Science Special Report, after a rigorous reanalysis of GHCN stations

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warming winters

Here’s Where Winters Are Warming the Most

Winters are warming across the U.S., and in some locations, the warming is dramatic. The Northern Plains, Great Lakes, and the Northeast are warming the fastest, while warming is taking place at a slower rate in the western U.S. In parts of Minnesota, Wisconsin, and northern New England winters have warmed at an average rate of more than 1°F per

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warming winters

See How Much Winters Have Been Warming in Your City

Winter is the fastest warming season in most of the country generally from the Front Range of the Rockies to the East Coast. The greatest warming along the northern states emphasizes a general rule of climate change — cold areas and seasons warm faster than areas and seasons that are already warm. But there are a few exceptions. Fall is warming the

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lake effect snow

Less Lake Ice, More Potential Lake Effect Snow

Arctic air begins to race across the relatively milder water of the Great Lakes every fall, generating lake effect snow. These snowfalls can be intense, but are often localized. Several inches of snow can fall a few miles away from a place that only gets flurries. As the planet has warmed from the increase in greenhouse gases, so have the lakes, me

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lake effect snow

Lake Effect Snow Season is Shifting and Contracting

Lake effect snow will still occur in a warming world, but by the late 21st century, we can expect a shortened lake effect snow season. Rather than peaking in fall and early winter, heavy lake effect snow would be pushed back later in the season, generally from January through March.

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wildfires and health

Here’s How Wildfire Pollution Harms Health

Large wildfires are becoming more frequent and widespread in the western U.S. Smoke from these fires is undermining decades of progress in reducing air pollution from tailpipes, power plants, and other industrial sources in many areas. Large fires are becoming more common and severe, and the smoke from these fires has serious public health impact

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