In his speech on climate change and national security on November 10, Secretary of State John Kerry said climate change is already a “threat multiplier,” and that worse is to be expected if climate change continues unchecked. But the relationship between the environment and violent conflict is complex and often indirect. Researchers have been wrangling for years over the role that global environmental change plays in fueling conflict and state fragility.

The United States: The world’s lone remaining superpower, home of the world’s largest economy and military, the world’s largest producer and consumer of natural gas, and soon the leading producer and consumer of oil.

The world’s second most populous country – projected to be first by 2022 – is developing faster than ever before, roiling the social, political, and environmental landscape. [Video Below]

In the midst of a minefield on day two of Desert Storm Task Force Ripper, Marine Corps Operations Officer Richard Zilmer stepped out of his armored personnel carrier, squinted up at the sky, and saw nothing but black from horizon to horizon. Iraqi forces, trying desperately to blunt the attack of coalition armies, had set fire to hundreds of Kuwaiti oil wells and oil-filled trenches.

There’s perhaps no better evidence of China’s growing appetite for American agricultural products than the ongoing transformation of the port of Oakland.

When you shop for a new refrigerator or pair of shoes, where do you look for information about products? Do you log onto Amazon and read reviews? Check Consumer Reports for lab-verified results? Consult your neighbor or mom?

Global climate trends indicate that our planet will continue warming into the next century, leading to more extreme climate conditions. The Latin America and Caribbean region is vulnerable to some of the most challenging aspects of climate change – sea-level rise, changes in precipitation, glacial melting, spreading of disease, and extreme weather events.

For all its flaws, the United Nations remains the only plausible forum for engaging broad global challenges like sustainable development. The most important environmental achievements of the past 40 years – the rise of environmental awareness, the birth of key ideas such as sustainability or the common heritage of humanity and the most important global treaties for environmental protection – all bear the UN stamp in one way or another. We could have added environmental human rights to that legacy last month, but we failed.