Chicago—a city well known for its windy and snowy winters—is experiencing some unusually warm weather. For the first time in 146 years, there was no documented snow on the ground in January and February, according to the local National Weather Service.

Meet Mr. Trash Wheel and Professor Trash Wheel—a pair of floating, solar and hydro-powered trash interceptors keeping Baltimore’s waters clean. These frankly adorable trash wheels can collect as much as 38,000 pounds of debris in a single day.

Thanks to Chile’s major investments in renewables, the Latin American country is seeing an incredible solar boom.In a new Bloomberg report, “Chile Has So Much Solar Energy It’s Giving It Away for Free,” solar capacity from the country’s central grid has increased four fold to 770 megawatts since 2013. Another 1.4 gigawatts will be added this year with many solar power projects under development.