As China continues to boom in the coming decades, it would be well advised to think big. Big cities, that is.

A devastating disaster hits a longstanding Asian dictatorship. The crisis is compounded by failed economic policies and conflicts with neighbors. The world stands ready to help, but the regime dithers and aid goes undelivered. Even information on the catastrophe is scarce thanks to a media blackout, government propaganda and denial.

High oil and food prices are a double blow no nation can dodge entirely. Even oil states like Iran are seeing food-price protests. But there's a small class of farm-and-gas exporters for whom the dual spike is more opportunity than threat. Canada, Brazil, Vietnam and Thailand are all enjoying the windfalls, and even war-tattered Cambodia is now reimagining its future.

Cyclone Nargis may have done more than just wreck Burma's cities. It may also spell doom for the government.

Below, eight leaders in the fight against hunger offer up food crisis action plans, and long term ideas for how to end famine and bolster farming.

Every day, 25,000 people die from hunger-related causes. And when food accounts for more than half a poor family's spending, price rises can be truly devastating for millions living on the edge.

If anyone remakes "Erin Brockovich," this is a scene I want to see. A scientist launches a study to determine the toxicity of hexavalent chromium, the drinking-water contaminant at the center of the lawsuits Brockovich spearheaded. The study will be a meta-analysis, combining existing individual studies to, he says, produce more-authoritative conclusions.

Dawn at Kanha National Park in India's central highlands is welcomed with a symphony of animal sounds. The safari guides in their jeeps listen intently, straining to pick out telltale dissonant notes

You can stop berating yourself for buying that Spanish clementine or New Zealand lamb. Although lists of "what you can do to save the planet" include eating locally

Scientists, inventors and entrepreneurs are focusing on ways to help the environment. Some of our favorite ideas.

Iceland Prime Minister Geir Haarde, who since 2006 has presided over this small country that derives 80 percent of its energy needs from renewable sources, has been named the greenest political leader by NEWSWEEK. Iceland's happy status