Tim McDonnell

Tim McDonnell is a Climate Desk associate producer. Read more of his stories here or follow him on Twitter.

Climate & Energy

California fights drought with crazy shade balls

There are now 96 million "shade balls" floating on the surface of the L.A. Reservoir. Watch the video.

Climate & Energy

Hillary Clinton still won’t take a position on the Keystone XL pipeline

Hillary Clinton released her big climate plan, but here's what she won't talk about.

Climate & Energy

Republican presidential candidate John Kasich believes in climate change. But he doesn’t want to fix it

Ohio Gov. John Kasich doesn't "want to overreact" to global warming.

Climate & Energy

Ted Cruz wants NASA to concentrate on space

The GOP presidential hopeful wants to learn more about faraway worlds. Our planet, not so much.

Climate & Energy

These are the 10 dirtiest power companies in the U.S.

Here are the worst offenders in a new report on the power sector's carbon pollution.

Climate change is killing bees

Bees are essential for life as we know it, but we're wiping them out.

Climate & Energy

Solar is mostly for the wealthy. Here’s how Obama plans to change that

Low-income households account for less than 5 percent of rooftop solar power.

Climate & Energy

5 charts that explain why Obama wants to clamp down on airplane emissions

Air travel is the largest unregulated source of carbon pollution in the U.S. -- but not for long.

Climate & Energy

Fracking could pollute drinking water, EPA says

But there's not much evidence that it has so far -- in part because oil and gas companies won't share their data.