School buses

Greener buses on horizon

Research shows that replacing or retrofitting dirty old diesel school buses can reduce the pollution inhaled by students significantly and can even lead to better health and higher standardized test scores. Credit: madame.furie, FlickrCC. Dear EarthTalk: I’ve heard that school buses cause a lot of pollution, especially for the kids riding inside. Is anyone making […]


Can sprinkling dust prevent climate change?

Photo caption: Harvard scientists with funding from Bill Gates want to launch some research balloons over the American Southwest to test their hypothesis that releasing dust into the stratosphere could counter global warming and keep our environment from overheating. Credit: SCoPEx. Dear EarthTalk: Is the plan to sprinkle dust in the stratosphere to reflect some […]

Nature's light

‘Nature’s light’ may lead to brighter future

Bioluminescence — otherwise known as “nature’s light” — is heat-free and great for medical, military and myriad other pollution-free applications. Credit: Joshua Lambus, FlickrCC. Dear EarthTalk: Is there any way we could harness the light from bioluminescent organisms for everyday lighting and other practical purposes? — M. Wilson, Framingham, MA Bioluminescence—defined by Merriam-Webster as “the […]

Trailers in forest
Environment Northwest Lifestyles

‘Glamping’ gives comfort to non-campers

Photo caption: Glampers staying at Roam Beyond’s Kalaloch site on Washington’s Olympic Peninsula can spend the night listening to the sounds of the pounding surf and chirping birdsong in an eco-friendly, solar-powered camping trailer. Credit: Homegrown Trailers. Dear EarthTalk: I was never keen on tent camping but I hear that the new “glamping” trend takes […]

Regional Climate Model char

Climate models help us prepare for future

Photo caption: This graphic shows the United Kingdom as represented in a Global Climate Model (GCM), a Regional Climate Model (RCM) and actual observations. Credit: Met Office. Dear EarthTalk: What are so-called regional climate models and why do we need them given that we already have pretty decent global climate models? — Rich W., Seattle, WA […]

U.S. Capitol building

Businesses tackle climate change

Photo caption: This past May, the non-profit CERES got 75 major American companies to join forces in lobbying Congress to pass legislation to fight climate change. Credit: Donna & Keith, FlickrCC. Dear EarthTalk: What are American businesses doing to help the U.S. meet its Paris climate accord commitments? — M. Francis, New York, NY Not […]