Monarch butterflies numbers down again this year

Reports suggest the number of monarch butterflies will be down almost 30% in 2012 as they make their annual trek from their breeding grounds in Mexico.

Unexplained booms in Alabama, Georgia, Wisconsin

In separate events, unexplained booms shook residents of several states. So far, government activities, earthquakes, and sonic booms are ruled out.

Study: Oil from Deepwater Horizon spill entered Gulf food chain

A new study confirms that oil from the 2010 BP Deepwater Horizon spill made it into the Gulf’s food chain through the tiniest of organisms, zooplankton.

Lee Kuan Yew Water Prize to Mark van Loosdrecht

Mark van Loosdrecht won the Lee Kuan Yew Water Prize for his work in improving the sustainability of wastewater treatment technology.

Venice is still sinking

Studies indicate that Venice is still sinking. New measurements indicate the city continues to sink and is also tilting to the east.

7.4-magnitude earthquake shakes Mexico

A powerful 7.4-magnitude earthquake shook resort towns earlier today, 200 miles south-southeast of Mexico City. Learn more from EarthSky.

Severe flooding across US Great Plains

Severe flooding and record breaking temperatures are all caused by a slow-moving weather system across the central United States.

Hummingbirds take no notice of flower color

Hummingbirds pay no attention to what color a flower is when figuring out whether to raid it for nectar, the latest research suggests.

Male fruit flies drink more alcohol after being rejected for sex

When female fruit flies reject the sexual approaches of male fruit flies, the males are driven to excessive alcohol consumption. Read more at EarthSky.

Early snow melts in North America not good for butterflies, study says

Scientists working at the Rocky Mountain Biological Laboratory have linked declines in butterflies to early spring snow melts. Butterfly population is dropping.