Stacy Jupiter realized how dangerous flooding was becoming in her adopted home of Fiji in 2009 when she flew back after a vacation and landed on an island in crisis. "Water was up to the roofs of the houses, and roads were cut off," says the marine scientist, who directs the Wildlife Conservation Society's Melanesia Program. Her research soon revealed that this uptick in floods — paired with human land mismanagement — was spreading waterborne diseases.

As the world's climate changes, ocean warming is accelerating and sea levels are rising more quickly, warns a new report by the U.N. Intergovernmental Panel on Climate Change.

The report is a synthesis of the most up-to-date climate science on oceans and ice, and it lays out a stark reality: Ocean surface temperatures have been warming steadily since 1970, and for the past 25 years or so, they've been warming twice as fast.

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After months of hesitating, House Speaker Nancy Pelosi is starting a formal impeachment inquiry into President Trump.


Updated 3:34 p.m. ET

The Trump administration has escalated its fight with California over environmental regulations.

Environmental Protection Agency Administrator Andrew Wheeler sent a letter Monday to the California Air Resources Board threatening to withdraw billions of dollars in federal highway money unless the state clears a backlog of air pollution control plans.

In one of the largest youth-led global protests in history, millions around the world marched from London to Manhattan on Friday.

As part of these demonstrations, young leaders are gathering in New York this week for the United Nations Climate Change Summit. Just over 700 youth activists attended the first Youth Climate Summit this weekend.

Updated at 10:57 p.m. ET

Tropical Storm Karen has reached Puerto Rico and the U.S. Virgin Islands, bringing heavy rain, flash flooding and winds of 45 mph.

The storm will continue to lash the area overnight and "move over the western Atlantic later tonight and Wednesday," according to the National Hurricane Center.

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World leaders are gathered in New York City right now for the United Nations General Assembly. And yesterday, they heard passionate words from the teenage climate activist Greta Thunberg.


Tropical storm advisories have been issued as meteorologists are watching three storms in the Atlantic basin.

The one most likely to hit land soon is Karen, which was degraded to a tropical depression as it slowly rolls toward Puerto Rico and the U.S. Virgin Islands in the southeastern Caribbean Sea bringing torrential, life-threatening rainfall and flooding.

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Sixteen-year-old Swedish climate activist Greta Thunberg only needed five minutes to make her point to the adults in the room at the United Nations Climate Action Summit in New York.


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This is the song of North America's most endangered bird.


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Today in New York, world leaders attended a United Nations summit on climate change. U.N. Secretary-General Antonio Guterres opened the meeting by challenging countries to make bold plans to reduce greenhouse gas emissions immediately.

United Nations via / YouTube

Climate activist Greta Thunberg, 16, addressed the U.N.'s Climate Action Summit in New York City on Monday.

No Plan B: The Climate-Conscious Voter

Sep 23, 2019

Pew Research released a poll three weeks after the 2008 Iowa caucuses indicating that just one percent of Americans ranked climate change as the most pressing problem facing the country.

No Plan B: A Different Government Shutdown

Sep 23, 2019

Environmental activists are planning to shut down traffic in Washington, D.C. on September 23 to demand the federal government take meaningful action to combat climate change.

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