Fishing boats are moored in the Mekong River, which has changed to an unusual clear blue color, in Nakhon Phanom province, Thailand, Dec. 4, 2019 (AP photo by Chessadaporn Buasai).

As societies around the world focus on containing the spread of the novel coronavirus, millions of people in Southeast Asia have another worry on their minds: How to put food on their table amid a devastating drought. In Thailand, historically low levels of rainfall since last summer have taken a heavy toll on the agriculture sector, which employs 11 million people. Inland fishing communities across the region are reporting drastically smaller catches. And in Vietnam, a state of emergency was declared earlier this month in five provinces in the southern Mekong Delta, which produces more than half of the country’s […]

A Brazilian soldier puts out fires at the Nova Fronteira region in Novo Progresso, Brazil, Sept. 3, 2019 (AP photo by Leo Correa).

Tensions have simmered for decades between Brazil, which believes the Amazon rainforest is a sovereign resource, and wealthy developed countries concerned with protecting one of the world’s most important carbon sinks. But it wasn’t until last summer that, amid growing international concern over climate change, deforestation in the Amazon provoked a high-level diplomatic spat. As fires raged in the Amazon, most of them set by farmers and ranchers to clear land, French President Emmanuel Macron proclaimed the issue was an international crisis and said he would put it on the agenda of the G-7 summit in Biarritz. German Chancellor Angela […]

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By 2050, hundreds of millions of people in developing countries will have left their homes as a result of climate change—a mass displacement that will make already-precarious populations more vulnerable and impose heavy burdens on the communities that absorb them. Unfortunately, the world has barely begun to prepare for this impending crisis. Those displaced by climate change are neither true refugees nor traditional migrants, and thus occupy an ambiguous position under international law. The world needs to agree on how to classify environmental migrants, as well as what their rights are. It also needs to strengthen its capacity to manage […]

Trash collectors pick up plastic bottles in New Delhi

In September 2018, after years of modeling and development, the Ocean Cleanup project launched System 001, a floating barrier designed to scoop up plastic debris from an area in the Pacific Ocean that, because of prevailing currents, had become a natural repository of ocean-borne plastic waste. The Great Pacific Garbage Patch, as the area the size of France became known, was first discovered in 1988, but it gained prominence after a public awareness campaign in 2008. Although System 001 ultimately failed to hold onto the plastic debris it collected, Ocean Cleanup announced late last year that a modified prototype known […]

A student protester holds up a foam replica of the earth during the Youth Climate Strike at Columbus Circle in New York City, March 15, 2019 (Sipa photo by Anthony Behar via AP Images).

The biggest challenge humanity faces this century is ensuring that the march of civilization does not degrade the global environment so much that we irreparably harm the planet on which our own survival depends. The advent of the Anthropocene—a new geological era in which humanity is the most important force shaping the biosphere—has revealed a fundamental contradiction between the Earth’s own integrated natural systems and a hopelessly fragmented international system. The former is an ecological and geophysical whole, as apparent in the famous “Earthrise” photograph taken by Apollo 8 astronauts on Christmas Eve, 1968. The latter is an artificial human […]