Thorium, an element named after the Norse god of thunder, may soon contribute to the world’s electricity supply
WELL begun; half done. That proverb—or, rather, its obverse—encapsulates the problems which have dogged civil nuclear power since its inception. Atomic energy is seen by many, and with reason, as the misbegotten stepchild of the world’s atom-bomb programmes: ill begun and badly done. But a clean slate is a wonderful thing. And that might soon be provided by two of the world’s rising industrial powers, India and China, whose demand for energy is leading them to look at the idea of building reactors that run on thorium.
Existing reactors use uranium or plutonium—the stuff of bombs. Uranium reactors need the same fuel-enrichment technology that bomb-makers employ, and can thus give cover for clandestine weapons programmes. Plutonium is made from unenriched uranium in reactors whose purpose can easily be switched to bomb-making. Thorium, though, is hard to turn into a bomb; not impossible, but sufficiently uninviting a prospect that America axed thorium research in the 1970s. It is also three or four times as abundant as uranium. In a world where nuclear energy was a primary goal of research, rather than a military spin-off, it would certainly look worthy of investigation. And it is, indeed, being investigated.
Asgard’s fire, The Economist, Apr 12, 2014
April 13 is the television premiere of the much-anticipated Showtime series on climate change, "Years of Living Dangerously." The show features a cast of notable celebrities, who set out with scientists, firefighters and policymakers to explore the front lines of climate change.
The show's first episode, already available online, features actor Don Cheadle traveling to Plainview, Texas, where he discusses climate change and drought with Texas Tech University climate scientist Katharine Hayhoe and her husband, an evangelical preacher. It also follows Harrison Ford as he travels to Indonesia to look at deforestation and climate change, and New York Times columnist Tom Friedman as he visits Syria to look at climate change and conflict. Matt Damon, Jessica Alba, and America Ferrera appear in later installments of the nine-part miniseries, which premieres at 10 p.m. on Sunday.
Can Celebrities And Prime Time TV Make Americans Care About Climate Change? by Kate Shepard, The Huffington Post, Apr 9, 2014
On the current trajectory, greenhouse gas emissions from cars, trains, ships and airplanes may become one of the greatest drivers of human-induced climate change, according to a draft of the forthcoming U.N. fifth assessment report on mitigation of climate change.
Authors project with high confidence that continued growth in emissions from global passenger and freight activity could "outweigh future mitigation measures," says a preliminary version of the Intergovernmental Panel on Climate Change (IPCC) study obtained by ClimateWire.
Lacking improvements in fuel efficiency combined with a comprehensive mitigation policy, the report finds that transport emissions could double by 2050 from 6.7 gigatons of emitted carbon dioxide in 2010, which represents 22 percent of the world's total.
Car, Truck and Airplane Pollution Set to Drive Climate Change by Julia Pyper and ClimateWire, Scientific American, Apr 10, 2014
Neither the government nor the ALP want us to discuss what contribution Australia is going to make to the Paris agreement on emission goals in 2015
Climate targets: Australia can't be caught napping while others take action, Op-ed by Erwin Jackson, The Guardian, Apr 11, 2014
The odds are increasing that an El Niño is in the works for 2014—and recent forecasts show it might be a big one.
As we learned from Chris Farley, El Niños can boost the odds of extreme weather (droughts, typhoons, heat waves) across much of the planet. But the most important thing about El Niño is that it is predictable, sometimes six months to a year in advance.
That’s an incredibly powerful tool, especially if you are one of the billions who live where El Niño tends to hit hardest—Asia and the Americas. If current forecasts stay on track, El Niño might end up being the biggest global weather story of 2014.
El Niño Could Grow Into a Monster, New Data Show by Eric Holthaus, Slate, Apr 7, 2014
Greenhouse gas emissions grew nearly twice as fast over the past decade as in the previous 30 years, bringing the world closer to warming that will bring dramatic and dangerous changes to the climate, according to a leaked draft of a United Nations' report.
The report from the Intergovernmental Panel on Climate Change (IPCC) said the growth rate in emissions over the from 2000-10 was higher than expected – even after taking into account the economic slowdown.
"Global GHG [greenhouse gas] emissions have risen more rapidly between 2000 and 2010," said the draft obtained by the Guardian. "Current GHG emissions trends are at the high end of projected levels for the last decade."
UN: greenhouse gas emissions nearly doubled in first decade of 21st century by Suzanne Goldenberg, Apr 11, 2014
The layer just below the Earth's surface is teeming with microbes capable of altering composition of the atmosphere.
Whether they do so or not all depends on the availability of organic matter in the soil, which in turn depends on whether that soil is frozen or not.
In the Arctic, where, thanks to global warming, permafrost is failing to live up to its name, more organic material is becoming available, and this could spell even more global warming.
How taking the 'perma' out of permafrost could accelerate global warming by Sudeshna Chowdhury, The Christian Scientist Monitor, Apr 8, 2014
Can science tell us how much ethical responsibility different countries bear for combating climate change?
It's going to try. According to a draft of a forthcoming Intergovernmental Panel on Climate Change (IPCC) report, ethics takes a front-and-center role in a forum traditionally reserved for exploring scientific consensus.
The real-world implications of those ethical questions of responsibility will play out over the next several months of U.N. climate treaty talks, making ethics — along with a chapter on the costs of mitigating emissions — among the report's most controversial topics, sources said.
IPCC explores the ethics and economics of fighting climate change by Lisa Friedman, ClimateWire, Apr 9, 2010
Clean energy will have to at least treble in output and dominate world energy supplies by 2050 in order to avoid catastrophic climate change, a UN report is set to conclude on Sunday.
The report produced by hundreds of experts and backed by almost 200 world governments, will detail the dramatic transformation required of the entire globe's power system, including ending centuries of coal, oil and gas supremacy.
Currently fossil fuels provide more than 80% of all energy but the urgent need to cut planet-warming carbon emissions means this must fall to as little as a third of present levels in coming decades, according to a leaked draft of the Intergovernmental Panel on Climate Change (IPCC) report seen by the Guardian.
IPCC: world must urgently switch to clean sources of energy by Damian Carrington, The Guardian, Apr 11, 2014
A cooler phase in a natural Atlantic Ocean cycle has helped offset warming caused by rising greenhouse gas emissions, a US study found on Tuesday.
This helps to explain slower warming of surface temperatures in the northern hemisphere in the past decade. The natural ocean cycle, sometimes called the Atlantic Multidecadal Oscillation (AMO), has been studied since the 1980s.
Various studies have found that the AMO can change sea surface temperatures in the north Atlantic, and have a smaller, knock-on impact on land and sea surface temperatures across the whole northern hemisphere.
Natural ocean cycle has offset manmade warming - study, Gerard Wynn, Responding to Climate Change (RTCC), Apr 9, 2014
Americans’ fascination with college basketball’s ‘March Madness’ may shed light on the analytical skills they can apply to addressing challenges posed by a warming climate.
Risk, Uncertainty, Climate Change, and ‘March Madness’ by Michael Svoboda, The Yale Forum on Climate Change & the Media, Apr 10, 2014
Liberal Leader Justin Trudeau wants to save the oil sands by imposing greenhouse gas-emission limits on the fast-growing sector that is the engine of Alberta’s economy.
The Liberal Leader has just returned from a visit to Fort McMurray, where he campaigned for the local Liberal candidate Kyle Harrietha in a coming by-election and toured Suncor Energy Inc.’s massive mining operation.
Trudeau calls for greenhouse gas limits on oil sands by Shawn McCarthy, The Globe and Mail. Apr 9, 2014
Twenty-five years ago people could be excused for not knowing much, or doing much, about climate change. Today we have no excuse. No more can it be dismissed as science fiction; we are already feeling the effects.
This is why, no matter where you live, it is appalling that the US is debating whether to approve a massive pipeline transporting 830,000 barrels of the world's dirtiest oil from Canada to the Gulf of Mexico. Producing and transporting this quantity of oil, via the Keystone XL pipeline, could increase Canada's carbon emissions by over 30%.
If the negative impacts of the pipeline would affect only Canada and the US, we could say good luck to them. But it will affect the whole world, our shared world, the only world we have. We don't have much time.
We need an apartheid-style boycott to save the planet, Op-ed by Desmond Tutu, The Guardian, Apr 10, 2014
As global population soars, efforts to boost food production will inevitably be focused on the world’s tropical regions. Can this agricultural transformation be achieved without destroying the remaining tropical forests of Africa, South America, and Asia?
Will Increased Food Production Devour Tropical Forest Lands? by William Laurance, Yale Environment 360, Apr 10, 2014
Posted by John Hartz on Saturday, 12 April, 2014
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