Climate & Environment

Discover, October 14 2010.

The Canadian government today declared bisphenol A, a chemical in plastics also known as BPA, to be toxic.

A scientific assessment of the impact of human and environmental exposure to bisphenol A has determined that this substance constitutes or may constitute a danger to human health and the environment.

The chemical has been linked to heart disease, impotence, and diabetes, while animal and cell culture experiments have shown that it can mimic the female hormone estrogen. It is found in some plastic containers, and some food cans are lined with it. While Canada is forging ahead, most other governments are dithering about whether or not the chemical poses a health threat. Read More >

Discover, October 13 2010.

On Tuesday the U.S. government repealed the six-month ban on deep-water drilling in the Gulf of Mexico, enacted in May in response to BP’s Deepwater Horizon oil spill.

“We are open for business,” Interior Secretary Ken Salazar told reporters in a phone call Tuesday afternoon, adding, “We have made, and continue to make, significant progress in reducing the risks associated with deep-water drilling.” Read More >

Discover, October 12 2010.

Motion-activated cameras have been used to catch bad nannies and adulterers for years. But in the forest, a high-tech, heat-detecting nannycam has caught video not just of the rare tigers that were its intended targets, but also of some unexpected forest-dwellers: illegal loggers. In the video to the right, you can see a rare Sumatran tiger (one of only 400 left in Indonesia) strolling up to the forest spy camera and saying hello in Indonesia’s Riau Province. Seven days later a beast of a very different kind awakens the camera: a bulldozer leveling the forest. The next day, another tiger passes by the spot, across the front of the clear-cut forest. The forests are being cleared for palm oil plantations, according to the WWF:

“Because of its status, both as a protected area and limited production forest, the area cannot be developed as a palm oil plantation, therefore any forest clearance, including bulldozing activities to clear the path, strongly indicates this excavation was illegal,” said Ian Kosasih, director of WWF-Indonesia’s forest and species program. Read More >

Discover, October 12 2010.

A huge offshore wind energy project took a leap forward today with the announcement that Google and the investment firm Good Energies are backing the mammoth underwater transmission lines that would carry clean electricity up and down the East Coast. The $5 billion dollar project would allow for wind farms to spring up all along the mid-Atlantic continental shelf.

Google and Good Energies will both be 37.5 percent equity partners in the clean energy infrastructure project; the Japanese industrial, energy, and investment firm Marubeni will take a 15 percent share. The project, proposed by a Maryland-based company called Trans-Elect, would set up a 350-mile long energy-carrying backbone from Virginia to northern New Jersey, first allowing the transfer of the south’s cheap electricity to the northern states, and later providing critical infrastructure for future offshore wind projects. Read More >

Discover, October 6 2010.

It was a deadly accident and an ecological disaster. On Monday, a reservoir at a Hungarian aluminum refinery ruptured, sending a wave of toxic sludge across three counties (click image to see a map of the area).

The spill sent 185 million gallons–a mini-tsunami–of caustic red mud flooding over 16 square miles of the countryside, killing four and sending 120 more to the hospital with chemical burns from the mud, which is an industrial waste product. Read More >

Discover, October 5 2010.

How to make natural gas? Flush the toilet, and wait three weeks. At least that’s the plan for homes involved in the Didcot Renewable Gas Project, which will be recycling residents’ waste into renewable natural gas, aka “biogas”.

Gearóid Lane, managing director of communities and new energy at British Gas, said: “This renewable gas project is a real milestone in Britain’s energy history, and will help customers and the environment alike. Renewable gas has the potential to make a significant contribution to meeting the UK’s energy needs. Gas from sewage is just one part of a bigger project, which will see us using brewery and food waste and farm slurry to generate gas to heat homes.” Read More >

Discover, October 5 2010.

In a move that some are calling a misguided publicity stunt, the environmental activist group 10:10 Climate Change Campaign produced and released a gory and disturbing short film, similar to Plane Stupid’s “Polar Bear” video, to promote the climate change action day scheduled for October 10, 2010 (or 10/10/10).

In the video, people who don’t pledge themselves to 10:10’s cause (including school children and Gillian Anderson) are exploded into red, chunky goo with the press of a button. It was released last week and has resulted in a media backlash, including Sony’s retraction of support of the cause. It even inspired a cartoon. Read More >

Discover, September 29 2010.

If you were to calculate how much a hurricane weighs, what units would you pick? To understand how much water is in a cloud, it seems many researchers pick the good ole elephant unit, or sometimes a blue whale.

Choosing some of the largest animals on the planet gives everyone a better sense of just how much water is up there in the clouds. Calculating the number of elephants in a small white puffy cloud will start to give you a sense of just how many elephants to expect from your average hurricane.

Andy Heymsfield of the National Center for Atmospheric Research told NPR’s science correspondent Robert Krulwich that a single, small, white, cotton-ball cloud weighs about the same as 100 (4-ton) elephants. Read More >