Climate Change

EPA Report Marks First Step Toward Climate Change Regulations

By Brian Santalone

Carbon dioxide and five other heat-trapping greenhouse gas emissions are a danger to public health and welfare, and possibly even national security, according to an Environmental Protection Agency scientific review released Friday.

Cities, Towns Work to Combat Climate Change

By Admin, PBS News Hour

While the United States has never fully ratified the Kyoto climate change protocol, individual cities and towns around the country are aiming to go where the nation as a whole has not.

Reversing Bush Rule, Obama Resumes Safeguards for Endangered Species

By Admin, PBS News Hour

President Barack Obama announced Tuesday that he wants federal agencies to resume full scientific reviews of projects that could harm endangered wildlife and plants.

What Would Be the Energy Cost of Electric Cars?

By Business Desk

Question/Comment: Paul, I am wondering about the new restrictions that are being forced on the car manufacturers for bio-fuel/electric/ethanol cars. Why isn’t there any mention about the cost of producing the electricity for the car batteries and ethanol? In the…

CO2-tracking Satellite Crashes after Failing to Reach Orbit

By Admin, PBS News Hour

A NASA rocket carrying a satellite built to track carbon dioxide emissions crashed into the ocean near Antarctica, ending a project nine years in the making at a cost of $273 million.

NASA to Launch Its First Carbon-Testing Satellite to Measure Greenhouse Gas

By Admin, PBS News Hour

NASA plans to launch a satellite Tuesday that will measure concentrations of carbon dioxide (CO2) in the Earth's atmosphere, providing scientists with the most complete and precise set of measurements yet of the greenhouse gas.

With Green Energy’s Limitations, Scientists Hunt for Alternatives

As the Obama administration highlights the importance of finding and investing in renewable energy, states such as California are trying to determine whether wind, solar and other renewables can replace a significant amount of fossil fuel. Spencer Michels reports.

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In Iowa, Questions Arise on Impact of Ethanol Production

Al Gore testified before Congress Wednesday on the urgency of energy policy reform and made the case for easing America's reliance on carbon-based fuels. Heidi Cullen of Climate Central reports on an emerging debate over the changing land use and…

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Obama Orders Regulators to Revisit Fuel Standards

President Barack Obama pledged renewed U.S. leadership to fight global warming Monday, as he ordered regulators to revisit the tightening of fuel-economy standards for new cars and trucks. Experts debate the significance of the announcement for automakers.

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Obama Moves to Revise Fuel Efficiency Policies

By Admin, PBS News Hour

President Barack Obama on Monday ordered federal regulators to reexamine two policies that could lead to tougher fuel-economy standards for new cars and trucks.