Coach House Geography

Interesting Geography stuff for InterHigh

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Archive for the ‘Student contribution’ Category – Oceans Reveal Further Impacts of Climate Change

Posted by fariday on February 8, 2010

Here is something I found on on polluted oceans. It seems, based on recent reasearches, the oceans are getting more acidic with pH levels rising due to harmful gases, such as carbon dioxide and carbon monoxide, polluting the sea water as well as the air through global warming. This is endangering marine life as well as cutting off dozens of their food chains which, if care is not taken, might rapidly lead to extinction.

ScienceDaily (Feb. 5, 2010) — The increasing acidity of the world’s oceans — and that acidity’s growing threat to marine species — are definitive proof that the atmospheric carbon dioxide that is causing climate change is also negatively affecting the marine environment, says Antarctic marine biologist Jim McClintock, Ph.D., professor in the University of Alabama at Birmingham (UAB) Department of Biology.”The oceans are a sink for the carbon dioxide that is released into the atmosphere,” says McClintock, who has spent more than two decades researching the marine species off the coast of Antarctica. Carbon dioxide is absorbed by oceans, and through a chemical process hydrogen ions are released to make seawater more acidic.

I also found an entertaining geography quiz that might prove rather interesting. Enjoy!


Posted in Antarctic, Fragile environments, Global warming, Hazards, Student contribution, Water | 1 Comment »

Swedish Bunnies Burned As Fuel to Heat Homes

Posted by alec8c on January 11, 2010

I know probably some of you know about biofuels, like using vegetables and things to fuel cars but i saw this and thought, this is a whole new teritory of biofuel! Sorry to all bunny lovers out there!

Hordes of rabbits, some abandoned by their owners or escaped, are being killed, frozen and converted to biofuel for heating homes in Sweden.

The practice has been criticized by Sweden’s Society for the Protection of Wild Rabbits, but officials say the fuzzy hoppers are a major pest, doing considerable damage to parks, homes and infrastructure each year.

“It is in winter they do the most damage. Then they eat tree bark, wood, anything. This is when they cause the most costly damage,” said Tommy Tuvunger at the Stockholm Traffic Office.

"The contractor doesn't just pick up rabbits. He also picks up cats, deer, horses and cows." — Tommy Tuvunger.

Thousands of the rabbits have been shot by two specially hired people who usually go out at dawn and use guns with silencers.

They are then deep-frozen and taken to a Daka Biodiesel plant in central Sweden for incineration as fuel.

“Once culled, the rabbits are frozen and when we have enough; a contractor comes and takes them away,” said Tuvunger.

“Those who support the culling of rabbits surely think it’s good to use the bodies for a good cause. But it feels like they’re trying to turn the animals into an industry rather than look at the main problem,” Anna Johannesson of the society told Vårt Kungsholmen.

Posted in Appropriate technology, Bio-enenrgy, Global warming, IGCSE, Renewable, Solution to problems, Student contribution, Sustainability | Leave a Comment »

Alec’ s first contribution: Warming Climate Chills Sonoran Desert’s Spring Flowers

Posted by Lindy on January 11, 2010

ScienceDaily (Dec. 20, 2009) — Global warming is giving a boost to Sonoran Desert plants that have an edge during cold weather, according to new research.

Although the overall numbers of winter annuals have declined since 1982, species that germinate and grow better at low temperatures are becoming more common.

“It’s an unexpected result — that global warming has led to an increase in cold-adapted species,” said lead author Sarah Kimball, a research associate at the University of Arizona in Tucson. “Because the winter rains are arriving later, they are occurring under colder temperatures.”

Climate change is shifting the winter storm track so the Sonoran Desert’s winter rains now generally begin in late November or early December, rather than during the balmy days of late October.

Therefore seeds that require winter rains must sprout during the cooler days of December.

“Southern Arizona has been getting hotter and drier for the last 25 or 30 years, and as a result, the desert annuals we’ve been studying at Tumamoc Hill have been changing,” said co-author D. Lawrence Venable, the UA’s director of research at Tumamoc Hill.

“Even though overall the winter growing season is getting warmer, what’s important in this system is that the growing season is initiated at a later date under colder temperatures,” Kimball said. “This demonstrates that the response of organisms to climate change can be unexpected.”

Posted in Fragile environments, Global warming, IGCSE, Student contribution | Leave a Comment »