The solar & wind innovations that got us where we are today & those waiting in the wings point to a hopeful future.
Here are four reasons to be hopeful on Earth Day when it comes to climate change.
White House report calls for billions of dollars in energy infrastructure modernization investments.
China could produce more than 85 percent of its electricity with renewables by 2050.
Total U.S. GHG emissions released into the atmosphere because of human activity increased 2 percent in 2013
Analysts are unsure whether cheap rooftop solar will inspire businesses and homes to "defect" from the power grid.
Cheap oil and increasingly cheap renewables are ushering in an era of abundant energy.
Greenhouse gas emissions fell 8 percent, while renewable energy rose to a record high.
New York State is creating a smart grid research lab to help integrate renewables into the electric power grid.
The federal government plans to train 75,000 solar workers by 2020, and many will be veterans.
As investments in wind and solar climb, backing major hydropower projects may be risky in a warming world.
Global renewables investments increased 17 percent in 2014 as solar and wind costs fell dramatically.
Scientists have mixed opinions about whether stagnant global energy-related CO2 emissions are a trend.
Cities may be ideal for major solar power development, though they're often overlooked, a new study says.
As natural gas booms, renewable energy proponents wonder if it will hurt or help solar power.
The International Energy Agency says global energy-related CO2 emissions were flat in 2014.
A Department of Energy report says the U.S. could get more than a third of its electricity from wind turbines by 2050
National forests, parks and other public lands play a major role in America's defense against climate change.
Four European Union countries have already surpassed their 2020 clean energy goals.
Caltech scientists think they have made another step toward creating energy from artificial photosynthesis.