Hotter weather makes it easier for rodents to feed and breed. Washington, D.C. saw a 390 percent increase in rats over the last decade.

We're wasting too much of the clean energy we generate. Reservoirs and caverns can store excess solar and wind power.

The cost of renewables is plummeting, heat pumps are selling like crazy, and red states are raking in cash from the IRA.

As relentless rains pounded LA, the city’s “sponge” infrastructure helped gather 8.6 billion gallons of water.