Why carbon dioxide has such outsized influence on Earth's climate
Carbon dioxide makes up less than one-twentieth of 1% of Earth's atmosphere. How does this relatively scarce gas control Earth's thermostat?
climate
Drought, dry conditions expand for southeast and western Colorado
After eight weeks free from drought and abnormally dry conditions, Colorado is again seeing the spread of drought.
How to have an all-renewable electric grid
We have all the technologies needed to make the electric grid run on renewables and lower pollution. What are they and what are the barriers to adopting them widely?
EarthTalk – Can sprinkling dust in the atmosphere prevent global warming?
Is it fact or fantasy? Could adding dust to the atmophere help with climate change?
Amazon fires are destructive, but they aren't depleting Earth's oxygen supply
If the Amazon rainforest functions as our planet's lungs, what do raging wildfires threaten? An atmospheric scientist explains why the fires, though devastating, won't suffocate life on Earth.
Dry conditions continue to spread in Colorado
Abnormally dry conditions increase again in Colorado, while this spring's heaving snowmelt helped slightly downstream.
Climate change will mean more multiyear snow droughts in the West
Consecutive years with snow drought conditions will become much more common, with impacts on cities, agriculture, forests, wildlife and winter sports.
Dry conditions returning to Colorado
Colorado's historic 8-week stretch free from drought and abnormally dry conditions has ended.
Climate change and air travel: why we have a responsibility to countries dependent on tourism
Reducing air travel may have a positive effect on climate change but it will inevitably damage developing countries that rely on tourism for their chances of prosperit.
It takes years to fully recover from big storms like Sandy
Major storms can leave thousands of homes damaged or destroyed. It can take years to recover and rebuild - if at all.