Cleveland Volcano: Continued unrest in Alaska

The growing lava dome might precede an explosive eruption in Alaska's Cleveland Volcano, according to the Alaska Volcano Observatory.

Ophelia weakens while Hurricane Hilary blossoms

Tropical Storm Ophelia is weakening in the Atlantic, and Hurricane Hilary is a powerful Category 4 hurricane in the eastern Pacific ocean.

Wasabi offers heat and health

Spicing up food and fighting cancer. Wasabi is on a roll. Studies have suggested that the plant may have certain antioxidant and antimicrobial properties.

Human influence takes the wild out of some wildfires

A study shows that human influence has historically increased wildfire activity - and decreased it. A scientist says, "Fire is a defining feature of humans."

Typhoon Roke makes powerful landfall in Japan

Typhoon Roke, a strong typhoon with winds reaching 135 miles per hour, made landfall on September 21, 2011, near Hamamatsu, Shizuoka Prefecture, Japan.

Bats only roost with their closest buddies

Researchers have discovered bats prefer to rest with their closest pals rather than with bats they don't know very well.

Amphibians and reptiles found in largest numbers in Florida

A study indicates that the pet trade is the number one reason Florida has the largest number of invasive amphibians and reptiles of any place in the world.

Arsenic cleaned from drinking water with plastic bottles

Scientists have developed a simple, inexpensive solution to treat drinking water contaminated by arsenic. The new technology could dramatically improve health.

Quake in India September 18, at least nine dead

Earthquake in Himalayas, in northeast India. Reuters reports five Indian Air Force planes - and small Army columns in Sikkim - mobilized for emergency relief.

Earthquakes active this week near Honshu, Japan

USGS reported 12 earthquakes of magnitude 5 or above in Japan during the past seven days. Strongest two days ago at 6.7 magnitude.