Search Results for: Ocean

Satellite portrait of global plant growth will aid climate research

An ambitious ESA project to chart ten years in the life of the Earth’s vegetation has reached a midway point, with participants and end-users having met to review progress so far. Harnessing many terabytes of satellite data, the GLOBCARBON project is intended to hone the accuracy of climate change forecasting.

GLOBCARBON involves the development of a service to generate fully calibrated estimates of land products based on a variety of Earth Observation data, suitable for a

Sequencing our seas

Scientists use genomics to reveal secrets of ocean microbes

Scientists have sequenced and compared the genomes of planktonic microbes living throughout the water column in the Pacific Ocean. The pioneering study yielded insight into the specialization of microbial communities at each depth–ranging from 40 to more than 13,000 feet.

“By reading the information stored in the genomes of entire microbial communities, we can begin to measure the pulse of this marine ecosys

Life leaves subtle signature in the lay of the land

One of the paradoxes of recent explorations of the Martian surface is that the more we see of the planet, the more it looks like Earth, despite a very big difference: Complex life forms have existed for billions of years on Earth, while Mars never saw life bigger than a microbe, if that.

“The rounded hills, meandering stream channels, deltas and alluvial fans are all shockingly familiar,” said William E. Dietrich, professor of earth and planetary science at the University of Ca

2005 Was the Warmest Year in a Century

The year 2005 may have been the warmest year in a century, according to NASA scientists studying temperature data from around the world.

Climatologists at NASA’s Goddard Institute for Space Studies (GISS) in New York City noted that the highest global annual average surface temperature in more than a century was recorded in their analysis for the 2005 calendar year.

Some other research groups that study climate change rank 2005 as the second warmest year, based on com

Fewer fish eggs, smaller fish result from over-fishing

UCR graduate student leads research showing how evolution slows recovery of fish population

The practice of harvesting the largest individuals from a fish population introduces genetic changes that harm the overall fish population, a UC Riverside graduate student and colleagues have determined. Removing the large fish over several generations of fish causes the remaining fish in the populations to become progressively smaller, have fewer and smaller eggs with lower survival and g

Study Finds Evolution Doesn’t Always Favor Bigger Animals

Biologists have long believed that bigger is better when it comes to body size, since many lineages of animals, from horses to dinosaurs, have evolved into larger species over time.

But a study published this week by two biologists at the University of California, San Diego in an early online edition of the Proceedings of the National Academy of Sciences suggests that maxim, known as “Cope’s Rule,” may be only partly true.

The scientists found that populations of tiny

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