A woman and boy walking across dry riverbed (© Vahid Salemi/AP Images)

Iran arrests scientists trying to solve water crisis

Water shortages caused by drought in Iran are further compounded by failed government policies and corruption. As the crisis worsens, Iran's security forces are arresting scientists trying to help.
Spanish-style buildings facing basketball court (Guardtop LLC)

U.S. is on the road to solving an urban environmental problem

Los Angeles and other U.S. cities are covering their asphalt roads with a coating that prevents the blacktop from absorbing and radiating the sun's heat.
Hand appearing to hold sun between thumb and index finger. (© Design Pics via AP)

Energy in one Texas city: Good planning makes good business

Texas may be known for its oil and gas, but one city there plans to get nearly all of its electricity from renewables, such as wind and solar.
Illustration of windmills on green hills (State Dept.)

Look what has happened since the 2015 climate pact was adopted...

A year has passed since nearly 200 countries came together to adopt the historic Paris agreement on climate. Check out what has happened since then.
Worker in hard hat operating power tamper next to solar panel array (© AP Images)

Solar power booms in Africa as new technology rolls out

New solar technology could help provide cheap power to many of the 600 million people in Africa who currently lack access to reliable electricity.
Close-up of electricity meter (Shutterstock)

Want cheap electricity? Try net metering.

Homeowners and businesses that rely on solar panels and wind turbines have cheaper electric bills, thanks to a system called “net metering.”
Bill Gates (© AP Images)

Global fund stakes $1 billion on clean energy

Bill Gates and 20 of the world's top entrepreneurs have a plan for investing in great ideas. They aim to revolutionize the clean energy sector.
Man walking along flooded street (© AP Images)

This tech tool helps communities prep for climate change

Cities around the world are getting granular with climate data, using a new tool called PREP to prepare for the local effects of climate change.
Wind turbines (© AP Images)

Google set to go 100 percent renewable

By 2017, Google expects to power its massive data centers and offices with 100 percent renewable energy, everywhere in the world.