David C. Richardson is a writer based in Baltimore, Maryland, specializing in topics related to science, the environment, and public policy.
Building Cities With Sustainability in Mind to Cut Costs
Municipal waste — from poop to heat — can be a valuable resource that could run our cities more cheaply and sustainably, says a hands-on Canadian ecologist.
Emotional Vérité: If You Can See It You Can Feel It
In a sequel to an experiment from the days of silent film, a multinational team of psychology researchers has shown that we perceive emotions based on what we bring to the table.
Riddles of an Acerbic Sea
Aside from global climate change, carbon dioxide emissions are contributing to another equally disturbing global problem: Ocean acidification — and its potential effects on marine ecosystems, especially coral reefs — has biologists very concerned.
NYC Says 'Cool It' to Air-Conditioning the Sidewalk
The lure of a cool blast costs 22,000 barrels of oil and pumps out tons of carbon dioxide.
The Grass Floodwall: Gustav Highlights Need for Wetlands
Mother Nature needs to be allowed to protect New Orleans from ... Mother Nature.
Working Around Salty Residue in Nation’s Breadbasket
Salt buildup in America's most productive farming area could idle thousands of acres. But there are, ahem, solutions ...
Butterfly Diplomacy: An Immigration Policy for Monarchs
North America's monarch 'is one of the largest of our butterflies and rules a vast domain.' But it's in trouble on both ends of its massive migration.