Scientific American - More from this source
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Is Global Warming Cooler than Expected?
LONDON – Several leading authorities on climate change have given a guarded welcome to research suggesting the Earth may warm more slowly than scientists had expected. »What Role Does Climate Change Play in Tornadoes?
A powerful tornado as much as two-miles wide devastated the Oklahoma City suburb of Moore on May 20. The twister reportedly boasted winds above 200 miles-per-hour as it tore through homes and schools, leaving a path of large-scale destruction and killing dozens of people, including many children. »Who's Paying the Price for Global Warming?
Climate change is already melting the Arctic, queering weather and threatening food supplies. So who's paying the price for all these global warming impacts? »Snowpack, Ice Cover Shrinking on Rocky Mountains
LONDON Around 20 percent of the snow cover in North America's greatest mountain range has been lost because of warmer springs in the last three decades. »Global CO2 Levels Approach Worrisome Milestone
Near the moonscape summit of the Mauna Loa volcano in Hawaii, an infrared analyzer will soon make history. Sometime in the next month, it is expected to record a daily concentration of carbon dioxide in the atmosphere of more than 400 parts per million (p.p.m.), a value not reached at this key surveillance point for a few million years. »Keystone XL Oil Pipeline Exacerbates Climate Change
The Keystone XL Pipeline would move enough tar sands oil to result in another 181 million metric tons of greenhouse gases entering the atmosphere yearly. A new report prepared by environmental group Oil Change International (OCI) analyzes what the climate change impacts of the proposed pipeline might be. »Can Evolution Beat Climate Change?
The oceanic pincushion known as the purple sea urchin relies on its many spines and pincers for protection and food. An inability to form its spiny shell would devastate the species, which thrives on rocky shores off North America’s west coast. »Cut Soot to Stave Off Sea Level Rise
Soot. The dirty, dark particles clog lungs, causing asthma and other chronic breathing problems. Turns out cleaning up such soot, along with certain other types of air pollution, could help slow sea level rise too. That's according to new research published in Nature Climate Change. ( Scientific American is part of Nature Publishing Group.). »Wild Weather Can Send Greenhouse Gases Spiraling
Climate change has a disconcerting tendency to amplify itself through feedback effects. Melting sea ice exposes dark water, allowing the ocean to soak up more heat. Arctic warming speeds the release of carbon dioxide from permafrost. »"Iron Lady" Took Strong Stance on Climate Change
Margaret Thatcher, the "Iron Lady" of British politics who died Monday at the age of 87, is being lionized as the woman who tilted British domestic and economic policy to the right. »High School Students Debate Climate Change: Adapt or Geoengineer?
Editor's Note: Each year, the Bickel & Brewer/NYU International Public Policy Forum directs a policy position at high schools worldwide for debate, pro or con. »Seeding Atlantic Ocean with Volcanic Iron Did Little to Lower CO2
LONDON – Plankton, tiny marine organisms, are a good way of cleansing the atmosphere of one of the main greenhouse gases, carbon dioxide. To do this they need dissolved iron to help them to grow, and if they lack iron then they cannot do much to reduce CO2 levels. »Failure Becomes an Option for Infrastructure Engineers Facing Climate Change
BOSTON – Civil engineers build rugged things designed to last for decades, like roads, bridges, culverts and water treatment plants. But a University of New Hampshire professor wants his profession to become much more flexible. . »Ice Core Data Help Solve a Global Warming Mystery
Scientists can study Earth’s climate as far back as 800,000 years by drilling core samples from deep underneath the ice sheets of Greenland and Antarctica. Detailed information on air temperature and CO2 levels is trapped in these specimens. Current polar records show an intimate connection between atmospheric carbon dioxide and temperature in the natural world. »Nepalis Adapt to Changing Climate
KATHMANDU – Environmental resource conflict – or the potential for it – is never far away in the Himalayas. »Earthworm Invaders Up Soil Greenhouse Gases
As Charles Darwin knew , earthworms enrich the soil. But they also increase greenhouse gas emissions. That's according to a meta-analysis in the journal Nature Climate Change. [Ingrid M. Lubbers et al, Greenhouse-gas emissions from soils increased by earthworms ]. »How Much Will Tar Sands Oil Add to Global Warming?
James Hansen has been publicly speaking about climate change since 1988. The NASA climatologist testified to Congress that year and he's been testifying ever since to crowds large and small, most recently to a small gathering of religious leaders outside the White House last week. »A Smut Above: Unhealthy Soot in the Air Could Also Promote Global Warming
Black carbon, commonly described as soot, may play a larger role in global warming than previously estimated, according to a new study. »Breathe Wheezy: Traffic Pollution Not Only Worsens Asthma, but May Cause It
Dear EarthTalk : Is it true that asthma cases in children often correlate to living close to roads and all the associated pollution-spewing traffic? -- Jake Locklear, San Diego. »We Look Back Earthily At 2012
Twenty-twelve was quite a year of change for the planet, if not quite the apocalypse imagined by New Age shamans or Hollywood producers. »Most popular
24 May, 23:20, scientificamerican - LONDON – Several leading authorities on climate change have given a guarded welcome to research suggesting the Earth may warm more slowly than scientists had expected. More »
20 May, 19:31, guardian - Wouldn't it be nice to live in a world where armchair experts gave up fighting over whether climate change is occurring? This spring, I began receiving calls and emails from colleagues about a strange little book that was mailed to environmental science professors around the country. This was a big mailing, in total, a reported 100,000 copies were sent out. More »
24 May, 15:20, guardian - Analysis shows royals crowding out coverage of global warming, as Prince Charles makes his strongest climate warning yet. Prince Charles, heir to the British throne, made one of his strongest speeches yet on the dangers of a warming planet when he warned this month that climate change is "the greatest risk we have ever faced". More »
23 May, 10:50, guardian - Committee on Climate Change says the sooner the UK invests in low-carbon power generation the cheaper it will be. Investing in new renewable power generation, rather than a "dash for gas", will be the lower-cost option for keeping the lights on while cutting greenhouse gas emissions, the government's climate change watchdog has said. More »
22 May, 01:30, physorg - Pinning the deadly tornado in the US state of Oklahoma on climate change is wrongheaded, even though the world is set to see a rise in high-profile weather disasters due to global warming, the leader of a UN body said Tuesday. More »
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