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California Has Hottest Start to Year While Midwest Chills

California Has Hottest Start to Year While Midwest Chills

The heat records keep falling for California. The state has had its hottest first seven months of the year, crushing the previous mark. Neighboring states have also baked, though not quite at record levels, helping contribute to both the spread of drought and large wildfires. At the same time, cool weather had a number of Midwest states … Read More

87 Cities, 4 Scenarios and 1 Really Hot Future

87 Cities, 4 Scenarios and 1 Really Hot Future

Global temperatures are rising, but nothing brings global warming home to people like a really hot summer day — those few days a year when it actually feels like the planet is boiling over. But what if those rare sweltering days, over 90° or 100°F, were not so rare and began to dominate summers? That could happen if carbon emissions continue … Read More

Has Your City Reached its Peak Heat Yet?

Has Your City Reached its Peak Heat Yet?

Statistically, the hottest time of year in the continental U.S. comes in mid-July, a few weeks after the sun reaches its highest point in the sky on the summer solstice. This year the solstice was on June 21. But that mid-July peak heat is just a national average: if you look at smaller regions, the peak temperature might come earlier (that’s true… Read More

6 Degrees: Arctic Sea Ice Is Melting, but East Coast Isn’t

6 Degrees: Arctic Sea Ice Is Melting, but East Coast Isn’t

Review of top climate news, from the state of Arctic summer sea ice melt to the cost of delayed action on climate. … Read More

Blistering Future Summers for 1,001 U.S. Cities

Blistering Future Summers for 1,001 U.S. Cities

During these dog days of summer, air conditioning and splash parks can help beat the heat, but climate change is making it harder to avoid simmering temperatures. Summers in most of the U.S. are already warmer than they were in the 1970s. And climate models tell us that summers are going to keep warming as greenhouse gas emissions continue. What … Read More

Record-Setting Drought Intensifies in Parched California

Record-Setting Drought Intensifies in Parched California

The relentless heat that has plagued the western half of the country this summer has ratcheted up California’s terrible drought once again, bringing it to record levels. More than half of the state is in “exceptional” drought, the highest category recognized by the U.S. Drought Monitor, which released its latest update on Thursday. “The heat has… Read More

Derailments May Increase as ‘Sun Kinks’ Buckle Tracks

Derailments May Increase as ‘Sun Kinks’ Buckle Tracks

Railroads could see more sun kinks if climate change-related heat waves become more severe and more frequent, possibly leading to train derailments. Sun kinks have been a major cause of derailments in recent decades, but scientists fear they could become more common in a warming world.… Read More

Late July Chill Helps Set Record Lows Across the East

Late July Chill Helps Set Record Lows Across the East

Folks across the eastern U.S. could be forgiven for thinking they’d pulled a Rip van Winkle and woken up in October on Wednesday morning. Temperatures dipped down overnight into the 60s, 50s and even 40s, setting record lows left and right. The chill in the air comes courtesy of yet another bout of cool Canadian air that dipped down over the area… Read More