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| ©Polly Morgan - The Drawbridge UK |
| Dead garden birds
Polly Morgan |
Earth Changes
Garden bird numbers have slumped 20 per cent in the past four years, the latest survey reveals.
An article by Bird Studies Canada biologist Jon McCracken examines substantial population declines for 'aerial insectivores ' - birds that specialize on feeding on flying insects.
It's been 16 months since Dave Hackenberg of Dade City became the first beekeeper in the country to say publicly that something was terribly wrong with his insects.
In the intervening time following the identification of the malady now known as Colony Collapse Disorder, things haven't gotten any better for the nation's bees, which pollinate about one-third of U.S. crops - some $15 billion worth.
In the intervening time following the identification of the malady now known as Colony Collapse Disorder, things haven't gotten any better for the nation's bees, which pollinate about one-third of U.S. crops - some $15 billion worth.
A chunk of ice the size of the Isle of Man has started to break away from Antarctica in what scientists say is further evidence of a warming climate.
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| ©BBC |
A new UC Davis study predicts that climate change will irreversibly alter water circulation in Lake Tahoe, radically changing the conditions for plants and fish in the lake -- and it could happen in 10 years.
One likely result would be a warmer lake overall, with fewer cold-water native fish, and more invasive species, such as large-mouth bass, bluegill and carp.
Still unclear is how the changes would affect the lake's phenomenal clarity and cobalt-blue color, which have helped to make the Tahoe Basin an international vacation destination.
The new findings were announced March 18 at a Tahoe scientific conference by three lake experts from the Tahoe Environmental Research Center at UC Davis -- Director Geoffrey Schladow, Associate Director John Reuter and postdoctoral researcher Goloka Sahoo.
One likely result would be a warmer lake overall, with fewer cold-water native fish, and more invasive species, such as large-mouth bass, bluegill and carp.
Still unclear is how the changes would affect the lake's phenomenal clarity and cobalt-blue color, which have helped to make the Tahoe Basin an international vacation destination.
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| ©Sylvia Wright/UC Davis photo |
| Still unclear is how the changes would affect the lake's phenomenal clarity and cobalt-blue color. |
The new findings were announced March 18 at a Tahoe scientific conference by three lake experts from the Tahoe Environmental Research Center at UC Davis -- Director Geoffrey Schladow, Associate Director John Reuter and postdoctoral researcher Goloka Sahoo.
Over two hundred million humans depend for their subsistence on the fact that coral has an addiction to 'junk food' - and orders its partners, the symbiotic algae, to make it.
This curious arrangement is one of Nature's most delicate and complex partnerships - a collaboration now facing grave threats from climate change.
This curious arrangement is one of Nature's most delicate and complex partnerships - a collaboration now facing grave threats from climate change.
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| ©iStockphoto |
| The symbiosis between coral and zooxanthellae is not only powerful enough to build the largest living organism on the planet, the Great Barrier Reef, but also underpins the economies and living standards of many tropical nations and societies who harvest their food from the reefs or have developing tourism industries. |
WASHINGTON - A chunk of Antarctic ice about seven times the size of Manhattan suddenly collapsed, putting an even greater portion of glacial ice at risk, scientists said Tuesday.
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| ©AP Photo/ National Snow and Ice Data Center, NASA |
| This satellite photo released by the National Snow and Ice Data Center at the University of Colorado at Boulder shows the Wilkins Ice Shelf on March 6, 2008 on the Southwest Antarctic Peninsula as it began to break apart. |
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| ©Michael Durham/Getty Images |
| THREAT Healthy bats, like the one above, hibernate in winter. |
Al Hicks was standing outside an old mine in the Adirondacks, the largest bat hibernaculum, or winter resting place, in New York State.
But bats dying from a mystery illness have been found in the snow in daylight hours.
It was broad daylight in the middle of winter, and bats flew out of the mine about one a minute. Some had fallen to the ground where they flailed around on the snow like tiny wind-broken umbrellas, using the thumbs at the top joint of their wings to gain their balance.
A shocking new report shows what kind of damage a large earthquake would do to Las Vegas. It also shows that "the big one" could hit here in the next 50 years.
Right at Tropicana and Decatur is the closest active fault to the Las Vegas Strip. It runs north and south along Decatur. The new damage data may be shocking, but it can better prepare the buildings in our area.
Right at Tropicana and Decatur is the closest active fault to the Las Vegas Strip. It runs north and south along Decatur. The new damage data may be shocking, but it can better prepare the buildings in our area.
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| ©BBC |
A 6.1-magnitude quake has hit northern Chile close to the border with Bolivia, the US Geological Survey reports.
The tremor, whose epicentre was 145km (90 miles) east of the coastal city of Iquique, struck at a depth of more than 120km (74 miles), it adds.
