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Advocates look to expand programs that address a legacy of the Pol Pot era: an epidemic of heart disease, diabetes and stroke among Cambodian-Americans.

Doppler radar helped save the Texas forests where millions of migrating birds rest each spring.

Outside the U.S., biological labs follow few if any security regulations. A Sandia National Laboratory team works to help those labs prevent deadly microbe releases, accidental and deliberate.

At The Farm School, students learn the nuts, bolts and economics of organic farming, and the spiritual side isn’t ignored, either. Garlic plantings may get blessed.

The canine-handler teams produced by the National Disaster Search Dog Foundation are the gold standard in their field. All the foundation needs now are some fake disasters the dogs can sniff.

When they beg for alms, are Senegalese “talibés” supporting Quranic schools — or being exploited? The government begins a fitful program of regulation.

Turning foreclosed commercial properties into park networks could put people to work, raise real estate values and promote wise redevelopment.

How the life and death of the Chicago painter known as Hilgos helped bring art — and a better quality of life — to Alzheimer’s patients.

Is Canada’s use of “traditional ecological knowledge” in resource planning an environmental advance or just a political sop to native tribes?

Melting glaciers yield evidence on new theories of Asian migration to the Americas. Underwater robots search the sea bottom, looking for more.