All reports

Report

Nuclear Power in a Warming World

The life cycle of nuclear power results in relatively little global warming pollution, but building a new fleet of plants could increase threats to public safety and national security.
Report
NASA mission satellite.

Space Debris from Anti-Satellite Weapons

Space debris is any human-made object in orbit that no longer serves a useful purpose. It includes defunct satellites, discarded equipment and rocket stages, and fragments from the breakup of satellites and rocket stages.
Report

Jobs, Energy, and Fuel Economy

We estimated the effect of moving existing technologies into cars and trucks with the modest goal of reaching a fleetwide average of 35 miles per gallon (mpg) by 2018.
Report
Back view of a fleet of vehicles parked in a car sales lot

Automaker Rankings 2007

This analysis uses sales and global warming and smog-forming emissions data to rate the bottom-line environmental performance of eight companies.
Report

Cashing In on Clean Energy

Homegrown renewable energy resources—such as wind, solar, bioenergy, and geothermal—can help reduce our dependence on polluting fossil fuels.