Should Creationism Be Taught in Public Schools?

Pro: Where Evolution Has Gaps, Creation Might Offer Answers—If We Will Listen
Con: Intelligent Design is Not Science, and Should Not Take the Place of Evolution in the Classroom

Secondhand Smoke Affects Blood Vessels

As little as 10 minutes of exposure changes cardiovascular function, researchers say

Former Inmates at Risk for Hypertension

And they're more likely to lack treatment for it years after freedom, study finds

Browner: White House Wants Climate Change Law

A top Obama adviser says congressional legislation is "essential" to help U.S. at Copenhagen talks.

Cap-and-Trade Invites Madoff-like Corruption

It wouldn't work but would make a playground for the rich and sneaky.

Air Pollution Exposure May Slow Fetal Growth

Study suggests that toxins alter cell activity and cut oxygen to baby.

Tons of Released Drugs Taint U.S. Water

U.S. Takes First Step Toward Climate Change Rules

Alabama City Using Biofuel from Curbside Wood Waste

Obama Outlines Vision for High-Speed Rail Network

Bacteria Found Thriving Beneath Antarctic Glacier

Two Nevada Geothermal Plants Open; Others Explored

Medical Science

Surprise! Heart Muscle Can Replenish Itself

Researchers are shifting their attention from the virus to the study of the infected host.

Cells Renew in the Human Heart

EPA: Greenhouse Gases are a Health Hazard

What Do You Think of Obama's High-Speed Rail?

More from Fresh Greens

Finding a Doctor Who Practices Maggot Therapy

Maggots, Leeches, and Another Gross Therapy

More from Ben Harder

How Did Life on Earth Get Started?

What's Next in Evolution?
Atlas of Climate Change
Can We 'Upgrade' Our Bodies?
What Will We Eat?
Will We Soon Find Alien Life?
How Did Our Ancestors Migrate?
Video: Evolution Hits the Beach

Antartica

Deceptive 'Greenwashing' Aims to Trick Ecotourists

Endangered Destinations
Now You See Them, Soon You Won't
Quiz: How Green is Your Vacation?
Photos: Endangered Places
Calculate Your Carbon Footprint
Interactive Map: Disappearing Destinations

Brightly lit communities have high rates of breast cancer, according to a new study of cancer data and satellite images of light pollution.

Turning Out the Lights

The dangers of a bright night are becoming more apparent.

Photos: Light Pollution
Burning the Earth at Both Ends
Shedding Light on Breast Cancer Cause
Light at Night: How to Counter the Health Effects

Arizona Striped Whiptail The Arizona striped whiptail, imperiled because of habitat destruction, is one of 681 species that WildEarth Guardians filed suit against the U.S. Fish and Wildlife Service to protect. In the past two years, no U.S. plant or wildlife species has been added to the list.

Not-Quite-Endangered Species

One conservation group says these 10 species—and 671 others—belong on the endangered list.

Blog: Add More Species to Endangered List
Gray Wolves Will Be Hunted Again
Environmental Friends or Foes
More Animal News

In the Search for Aliens, a Lot of Dumb Questions

UFOs. Roswell. The planet Nibiru. An astrobiologist busts myths while seeking intelligent life.

When ET Phones Home, Will You Be There to Take the Call?
Near-Earth Asteroid Offers Rare Chance for a Close Look
10 Things You Didn't Know about Space Exploration

Suzanne Critchfield, 68, with grandkids in Oakley, ID and her daughter Annette Hansen, left, look over their family history on a computer. Grandchildren Alysha, 9, Jared, 11, Bruce, 16 and Mark, 21 are seen in the back.