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100 Days of Climate: Week 5

Over Trump's first 100 days, we're going to show what science tells us about our warming world.

This January Was the Third Warmest on Record Globally

The first month of 2017 was extremely warm for the globe, continuing a trend of planetary heat.

10 Hottest Years on Record

The 10 hottest years ever recorded have all occurred since 1998.

Sea Ice Hits Record Lows at Both Poles

Warm weather could send Arctic sea ice to a record low winter peak as Antarctic sea ice sets an all-time record low.

Food Security, Forests At Risk Under Trump’s USDA

U.S. forest health and the ability of farmers to respond to climate change are at risk under Trump's USDA.

The Winter of Blazing Discontent Continues in the Arctic

Arctic sea ice is record low for this time of year and warm air is about to flood the region again.

Warming-Driven Heat Waves Could Tax U.S. Electrical Grid

More frequent heat waves will drive up electricity demand, potentially costing billions in infrastructure upgrades.

Fewer Days Below 32°F

Parts of the U.S. may see 90 percent fewer days mid-century with average temps below 32°F.

Global Warming Threatens Winter Sports

Warmer winters have consequences, including for our winter fun.

The Problems With Winter Warming

Warming winters may sound great at first, but they bring new problems.

Cold Getting Less Extreme

Extreme cold is decreasing, as the lowest temperature observed each year is trending upward.

U.S. Faces Huge Crop Losses If Temps Keep Rising

The U.S. faces big drops in harvests of major food crops by 2100 if temperatures continue to rise.

Warm Air Invades Arctic Again, Slowing Sea Ice Growth

Another bout of warm, stormy weather has hit the Arctic, sending temperatures rising and slowing sea ice growth.

The Temperature Spiral, Now With 2016’s Record Heat

The world had a record hot year in 2016. There's no better time to revisit the temperature spiral.

2016 Was the Hottest Year on Record

Globally, 2016 was the hottest year on record. That makes three years in a row of record setting heat.

2016 Officially Declared Hottest Year on Record

2016 has been declared the hottest year on record, the third year in a row to do so and a marker of global warming.

Japan’s Biggest Coral Reef Devastated by Bleaching

Seventy percent of the Sekisei lagoon in Okinawa had been killed by a phenomenon known as bleaching.

Beginning of the End of CA Drought, But What’s Next?

Storms have wiped out part of California's drought. Global warming could bring climate swings in the future.

Climate Change Is the World’s Biggest Risk, in 3 Charts

In its annual risk review, the World Economic Forum ranked climate change among its most impactful risks.

It’s Official: 2016 Was Second Hottest Year for U.S.

2016 was the second hottest year on record for the U.S. and the 20th consecutive year above average.

Gallery

Thanksgiving Warming Projections The cool days of late November will turn warmer on average in the coming decades.

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