renewable energy

India's tech cities are choking on their success

Like thousands of others, Megha Mathur moved to the Indian city of Gurgaon for a coveted job in tech. She soon realized she wouldn't be able to live there very long. The pollution was so bad she had to check an air quality app on her phone several times a day to see whether it was safe to go outside without a mask.

Global emissions will hit another record high this year

Carbon dioxide emissions are expected to reach another record high this year, a new report found Wednesday, with scientists warning the world is losing time to make the drastic reductions needed to avert a climate catastrophe.

Most countries that pledged to cut emissions haven't

"Keep it in the ground" has long been a favorite slogan of the environmental movement aimed at the coal, oil and gas industries, and the catchphrase is based in science.For years, scientists have warned that without shifting energy consumption from…

Apple executive says US needs a new energy system

As wildfire season loomed in California last month, the executive who oversees Apple's environmental efforts told CNN Business that fires sparked in the state show the need to update the United States' aging energy infrastructure.

Offshore wind could power the world

Offshore wind turbines could generate enough electricity to power every home and business on Earth, according to a report published on Friday.

Dead whale gives new life to debate over dams in Pacific Northwest

One image was clear -- a dead orca calf being carried across the ocean by its apparently grief-stricken mother. The calf may well have died from malnutrition. The Southern Resident Killer Whales in its pod are facing a critical shortage of their main food source: fat, juicy salmon.

Coal demand to plunge to 42-year low

US power plants are expected to consume less coal next year than at any point since President Jimmy Carter was in office, according to government forecasts released on Tuesday.

Shipping trying to clean up its act

In the port of Antwerp in Belgium, a small boat whizzes around, shuttling 16 passengers back and forth. The "Hydroville" is fast, silent and, most strikingly, it produces zero pollution.