According to recent polling, climate change is seen as the single most threatening international challenge around the world, and there’s evidence that all that worry is taking a psychological toll. Adding to droughts, floods, extreme weather, and die-offs, psychologists are observing higher levels of anxiety, depression, and post-traumatic stress disorder in certain areas and professions. Even people who do not actively stress about global warming or view it as a major threat may still suffer psychological trauma from its effects.

More than 80 percent of the estimated 42 million people living in Central Africa’s Lake Victoria Basin depend on fishing or farming for survival. Given this overwhelming reliance on natural resources, the lake’s deteriorating condition – driven by climate change, agriculture, pollution, deforestation, overfishing, and industrialization – has far-reaching implications.

An advisory released this August by the U.S. National Weather Service warned this year’s El Niño could be among the strongest ever recorded, lasting well into the first few months of 2016.

Water is being used as a weapon of war on one of Syria’s deadliest battlegrounds, says the International Committee of the Red Cross (ICRC) and its local affiliate, the Syrian Arab Crescent, in a new video.

Opportunities for research, enterprise, and exploration in the Arctic are expanding as climate change renders the northernmost reaches of the globe more accessible – and visible – than ever before. Often overlooked, however, are the people who actually live there. Four million people make their home in the resource-rich Arctic, where developers and policymakers are staking growing claims. [Video Below]

Somewhere off the coast of Thailand, “ghost ships” bump and crash along the choppy waves scrapping the sea floor with nets that spare nothing. Pulling up these illegal hauls in shifts that sometimes last 20 hours are thousands of migrant fishermen, many of whom have been forced into indentured servitude or kidnapped. Far from shore on unregistered boats, they have little hope of escape and face daily abuse and squalid conditions. More recently, some captains have turned to trafficking Rohingya fleeing persecution in Myanmar, pressing some into service, extorting others, and taking sex slaves.

Ten years ago this month one of the United States’ deadliest and most costly storms, Hurricane Katrina, struck the Gulf Coast. In Louisiana, the storied city of New Orleans was dealt a particularly devastating blow. Hundreds died and the city suffered extensive damage as 80 percent of its neighborhoods flooded, prompting an exodus it is still recovering from.