If you're concerned about specific environmental issues, you're probably trying to do something about them. Some of those actions may extend to what you put on your dinner plate.

See how other readers of this website are changing their diets and eating habits to address their environmental concerns and reflect their environmental commitment--and join the discussion.

You've seen it a hundred times and probably never given it a second thought -- the offical seal of the U.S. Environmental Protection Agency.

Follow the link to see the seal again and to find out how it came to be.

Every time we are exposed to radiation, whether from a medical X-ray or a nuclear accident, government officials quickly reassure us that the amount of radiation we are likely to receive is perfectly safe.

Many medical experts disagree, arguing that radiation exposure is cumulative and no amout of radiation is truly safe. Learn more.

In his third State of the Union this month, President Barack Obama again called on Congress to end federal subsidies and tax breaks for big oil companies.

Obama said the money would be better spent developing clean, renewable energy that could one day replace oil and help make the United States energy-independent.

Read an earlier take on the question of taxpayer-financed subsidies for oil companies.