Jaime Oberlander surveyed nearly 4,000 former aid workers on how they're coping since the USAID stop-work order.

Human-caused global warming and a strong El Niño are adding excess heat to the oceans, threatening marine life and providing storms with more energy and moisture.

What happens when things fall apart.

Summer is not what it once was. We have been robbed of one of life’s great joys

Climate change means giant fires of the kind that ripped across France and Spain are becoming common, with potentially dire consequences for Europe’s economies.