Earth

Earth

Sea levels erratic during latest ice age

Mineral crusts deposited 81,000 years ago in a Mediterranean island’s caves suggest an abrupt jump in sea level.

Agriculture

EPA reviews hints of weed killer’s fetal risks

The Environmental Protection Agency will be convening meetings of its Scientific Advisory Panel on pesticides throughout 2010 to probe concerns about the safety of atrazine, a weed killer on which most American corn growers rely. The first meeting of these outside experts started Tuesday. And although a large number of studies have indicated that atrazine can perturb hormones in animals and human cells — and might even pose a possible risk of cancer amongst heavily exposed people, these outcomes were not the focus of EPA’s review Tuesday. Risks to babies were.

Earth

Oldest feathered dino shows its colors

Analysis of a fossil suggests plumage first evolved for display, not flight.

Earth

Florida’s big chill may have hammered corals near shore

January cold snap caused rare wintertime coral bleaching and die-offs for Florida’s coral reefs.

Earth

The FY 2011 budget: So much for transparency

Cabinet officials and other administration leaders met with reporters yesterday to outline the President’s Fiscal Year 2011 federal budget. That spending blueprint includes $147-billion-and-change for research and development programs. But in contrast to past years, details tended to be skimpy today — and any chance for followup or verification of apparent trends has proven more difficult than usual.

Life

Keeping black bears wild

Wildlife managers compare ways to keep bears away from food and people.

Climate

Water vapor slowed recent global warming trend

A decline in stratospheric water vapor has slowed Earth’s surface warming slightly in recent years.

Earth

Dinosaurs, in living color

Researchers find microscopic structures in some fossils that may have held pigments.

Climate

Indian climatologist disputes charges over Himalayan projection

London’s Sunday Mail reported that it had reached the author of a chapter in a purportedly authoritative 2007 climate-change assessment and learned that this scientist – Murari Lal – deliberately used unsubstantiated sources for conclusions about the rate of glacier melting in the Himalayas. Lal doesn’t dispute that mistakes were made – ones that likely exaggerated projections of glacier melting. But he does challenge the newspaper’s charge that those mistakes were politically motivated.

Humans

Algae as biofuel still rough around the edges

Sources of nutrients, carbon dioxide can make or break this potential renewable fuel heavyweight

Climate

IPCC’s Himalayan glacier ‘mistake’ not an accident

A London newspaper reports today that the unsubstantiated Himalayan-glacier melt figures contained in a supposedly authoritative 2007 report on climate warming were used intentionally, despite the report’s lead author knowing there were no data to back them up.

Earth

Tsunamis could telegraph their imminent arrival

Telecommunication cables could give early warnings of giant waves.