New research shows that the amount of heat the planet traps has roughly doubled since 2005, contributing to more rapidly warming oceans, air and land. Oceans absorb most of that heat, about 90 percent. That extra heat, especially in the oceans, will mean more intense hurricanes and marine heat waves.
Climate change is making heat waves more intense, more frequent, longer lasting, and more dangerous resulting in record breaking extremes: September 2020 was the world’s hottest month ever recorded, and in June 2021, Portland, Oregon had a day with 108 degrees, which broke all heat records. The summer of 2021 is now the warmest summer on record in the U.S., barely eclipsing the extreme heat of 1936’s Dust Bowl.
Extreme heat contributes to wildfire conditions, exacerbates drought, and endangers health.
NRDC has a heat map that is searchable by address. C2ES’ Resilience Strategies for Extreme Heat provide solutions for adaptation that be implemented on both an individual and community level.
And, if you are curious about how the temperatures in your hometown have risen since you were born and how much hotter they are predicted to become, take a look at this New York Times Climate piece.

That is the startling finding of a new interactive analysis by Carbon Brief’s Dr Zeke Hausfather and Tom Prater, which lays bare the impact of the 1.2C of global warming Earth has already experienced.
In 2022 alone – which was the fifth or sixth warmest year on record for the Earth’s surface – approximately 380 million people saw their hottest single hourly temperature ever recorded, according to the analysis.
09/11/23
A warm August wrapped up a sweltering Summer 2023 across the U.S., according to NOAA’s National Centers for Environmental Information.
07/17/23
Extreme heat is the deadliest weather phenomenon in the United States. It's also one of the easiest to underestimate: We feel it on our skin, or perhaps see it shimmering in the air around us,…
07/13/23
Andy Revkin recently asked whether the “climate dice” have become more “loaded” in the last 15 years. Climate dice were defined1 in 1988, after we realized that the next cool summer may cause the public…
07/08/23
Observations from both satellites and the Earth’s surface are indisputable — the planet has warmed rapidly over the past 44 years. As far back as 1850, data from weather stations all over the globe make…
06/30/23
Extreme heat is becoming increasingly common across the globe, with longer, more frequent heat waves. These rising temperatures can put many at risk for heat-related illnesses, including heat stroke and heat exhaustion. Read on for…
09/13/22
It was the summer that wouldn’t quit. From early June to straight past Labor Day, waves upon waves of heat scorched and baked the country, smashing thousands of temperature records along the way.
08/15/22
A new study reveals the emergence of an "extreme heat belt" from Texas to Illinois, where the heat index could reach 125°F at least one day a year by 2053.
08/15/22
It was the middle of July and already this summer had become a top contender for the hottest in Texas’s recorded history. In San Antonio, which by July would normally experience about three days of…
04/26/22
"Extreme heat kills more Americans than any other weather event and has the greatest impact on our nation's most vulnerable communities," said Deputy Secretary of Commerce Don Graves. "Fortunately, our talented and dedicated researchers and…
08/13/21
“In this case, first place is the worst place to be,” said NOAA Administrator Rick Spinrad, Ph.D. “July is typically the world’s warmest month of the year, but July 2021 outdid itself as the hottest…
08/11/21
We all live in two worlds: a physical one and a social one. The new report of the Intergovernmental Panel on Climate Change, which was released on Monday, is ostensibly about the physical world. It…
07/21/21
The June contiguous U.S. temperature was 72.6°F, 4.2°F above the 20th-century average, ranking warmest in the 127-year record and surpassing the previous record for June set in 2016 by 0.9°F. The year-to-date average temperature for…
06/04/21
This visualization shows that as land temperatures have increased since 1950, hotter days have become more common and colder days have become less common.
10/01/20
Climate change can increase the risk of conditions that exceed human thermoregulatory capacity.
08/03/20
How much is temperature to blame when hospital visits surge during heat waves and cold spells? What role might adaptations like indoor heating and cooling systems play in blunting those effects? And, at what cost?…
01/31/20
Last year was the second-warmest on record for the globe, but in many places, such as Australia and Alaska, temperatures were unprecedented in modern record-keeping. This is known from data gathered by thermometers at the…
01/30/20
What were global temperatures the year Jesus was born, during the 12th century when Genghis Khan ruled the Mongol Empire, and in 1503 when Leonardo da Vinci started painting the Mona Lisa — and how…
11/05/19
The Climate Impact Lab is a unique collaboration of 30 climate scientists, economists, computational experts, researchers, analysts, and students from some of the nation’s leading research institutions.
08/13/19
Before climate change thawed the winters of New Jersey, this lake hosted boisterous wintertime carnivals. As many as 15,000 skaters took part, and automobile owners would drive onto the thick ice. Thousands watched as local…
09/11/19
This website is designed to inform you about the health dangers of heat, prepare you for excessive heat events, and tell you what to do during an excessive heat wave.