Introduction to 10 Things You Can Do to Help Save the Earth

Going green is easier than you think. There are little things you can do every day to help reduce greenhouse gases and make a less harmful impact on the environment. Taking care of the Earth is not just a responsibility -- it's a privilege. In that spirit, HowStuffWorks came up with 10 things you can do to help save the Earth.

Contrary to conventional belief, as the climate warms and growing seasons lengthen subalpine forests are likely to soak up less carbon dioxide, according to a new University of Colorado at Boulder study.

As a result, more of the greenhouse gas will be left to concentrate in the atmosphere.

The US EPA is the source of most air quality impact assessment models used in the US for regulatory purposes, such as predicting the potential impacts from proposed stationary sources of air pollutants and mobile sources such as motor vehicles. Since motor vehicle emissions vary with regulatory changes in required emission level, it is important that impact modeling be performed with the most up-to-date models.

EPA recently announced that an updated version of the Motor Vehicle Emission Simulator (MOVES) model — MOVES2010 — is now available for use to estimate air pollution from cars, trucks, and other on-road mobile sources. The model can also calculate the emissions reduction benefits from a range of mobile source control strategies, such as inspection and maintenance programs and local fuel standards.

A MAJOR group of developing nations, including China and most African nations, have walked out of working groups, triggering a major stalemate between developed and developing countries at the Copenhagen climate change negotiations.

LUCY KNIGHT IN COPENHAGEN

'Get to work', urges climate head

By Richard Black

By H. JOSEF HEBERT, Associated Press Writer H. Josef Hebert, Associated Press Writer Wed Nov 25

WASHINGTON – Putting his prestige on the line, President Barack Obama will personally commit the U.S. to a goal of substantially cutting greenhouse gases at next month's Copenhagen climate summit. He will insist America is ready to tackle global warming despite resistance in Congress over higher costs for businesses and homeowners.

Climate change is essentially irreversible, according to a sobering new scientific study.

As carbon dioxide emissions continue to rise, the world will experience more and more long-term environmental disruption. The damage will persist even when, and if, emissions are brought under control, says study author Susan Solomon, who is among the world's top climate scientists.