Hydrogen energy the chloroplast way: solar-to-fuel with the artificial leaf

With atmospheric carbon dioxide recently hitting a record, the discovery of alternative renewable energy sources has taken on added urgency.

(LUCAS JACKSON / REUTERS)

Project aims to track greenhouse gases from LA, Paris

Project aims to track greenhouse gases from LA, Paris

Launching the monitoring project came with the usual growing pains.

Coming to America: A new trash-to-energy plant planned for Arizona

Coming to America: A new trash-to-energy plant planned for Arizona

The city of Glendale could be an unexpected trash power leader, if it gets a garbage-to-energy plant built by engineering firm Abengoa.

Home solar leasing business shines for SunPower

Home solar leasing business shines for SunPower

Solar leases have become a popular way for consumers to use solar electricity without paying for the expensive upfront price.

Wind energy continues to grow on the list of greentech choices

Wind energy continues to grow on the list of greentech choices

We’ve done an excellent job figuring out how to use fossil fuels, but what about our other natural resources? Wind, some say, is our next best thing?