Updated: 55 min 37 sec ago
For more than a decade, the scientific community has postulated that methane could be spontaneously produced by chemical reactions between hydrogen from hydrothermal vent fluid and carbon dioxide. New research is the first to show that methane formation does not occur during the relatively quick fluid circulation process, despite extraordinarily high hydrogen contents in the waters.
Contrary to expectations, weathering rates over the past two million years have remained constant through glacial cycles, new research shows. Scientists are interested in the rates of these chemical weathering processes because they have big implications for the planet's carbon cycle, which shuttles carbon dioxide between land, sea, and air and influences global temperatures.
What happens when a nonstop climate campaigner, Bill McKibben, has a beer with a nonstop blogger on climate skepticism, Anthony Watts?
Companies hope to use techniques honed in the internet world to bring sweeping change to healthcare
A carbon emissions tax is an easy, effective approach to climate change, steering companies and consumers toward lower-emission and renewable sources.
Parliament voted to order the nation’s pension fund to shift holdings out of billions of dollars of stock in companies that rely at least 30 percent on coal.
The new findings try to correct for problems in the way global temperatures were measured and suggest there has not been a slowdown in global warming since 2000.
Nitrous oxide (N2O) is a powerful greenhouse gas and a major cause of stratospheric ozone depletion, yet its sources and sinks remain poorly quantified in the oceans. We used isotope tracers to directly measure N2O reduction rates in the eastern tropical North Pacific. Because of incomplete denitrification, N2O cycling rates are an order of magnitude higher than predicted by current models in suboxic regions, and the spatial distribution suggests strong dependence on both organic carbon and dissolved oxygen concentrations. Furthermore, N2O turnover is 20 times higher than the net atmospheric efflux. The rapid rate of this cycling coupled to an expected expansion of suboxic ocean waters implies future increases in N2O emissions.
Authors: Andrew R. Babbin, Daniele Bianchi, Amal Jayakumar, Bess B. Ward
UK Only Article:
European business and climate change
Firms increasingly believe that saving the planet is good for business
Plugged in to climate concerns
Plugged in to climate concerns
SIX big European oil and gas firms called on June 1st for a globally co-ordinated price on carbon-dioxide emissions, to restrain the impact on the climate of burning fossil fuels. It was a bombshell, in its way. Five years ago no one would have expected the move: as producers of much of the world’s dirty fuels, their industry was disinclined to join forces and advocate accelerating the switch to cleaner ones. “It is a sort of revolution,” says Patrick Pouyanné, the boss of one of the six, Total. And it is not just the energy firms. As world leaders prepare to meet in Paris in December to produce an agreement on reducing greenhouse-gas emissions, attitudes towards ...<div class="og_rss_groups"></div>
In an effort to shape policy, new research goes into finer detail to see whether or not national parks are really effective in preventing deforestation. For the study, the researchers focused on the conservation efforts in Indonesia, where there is widespread concern regarding the impact of ongoing deforestation on increasing carbon emissions and loss of habitat for biodiversity.
High-profile science behind climate change and carbon recycling takes a new turn as researchers find a protein in a major group of phytoplankton that keeps them alive in stressed environments in the ocean.
The Environmental Protection Agency is expected to report as early as Friday that greenhouse gas emissions from airplanes endanger human health through global warming.
Fruitless efforts to seriously curb greenhouse gas pollution suggests a new approach is warranted — making it costly not to join an international consortium committed to fighting climate change.
The heat generated by burning a fossil fuel is surpassed within a few months by the warming caused by the release of its carbon dioxide into the atmosphere, a new study says. The release of CO2 into the atmosphere contributes to the trapping of heat that would otherwise be emitted into outer space.
Methanogens – among the simplest and oldest organisms on Earth – could survive on Mars, new research suggests. Methanogens, microorganisms in the domain Archaea, use hydrogen as their energy source and carbon dioxide as their carbon source, to metabolize and produce methane, also known as natural gas. Methanogens live in swamps and marshes, but can also be found in the gut of cattle, termites and other herbivores as well as in dead and decaying matter.
Norway has the best geological ‘carbon dioxide sponge’ in the world, says an expert of climate technology. Without carbon capture and storage, the world will be unable to achieve the aim of limiting the global temperature increase to two degrees. Therefore, he wants Norway to adopt a more proactive policy: among other measures, he would like to see Norway taking the initiative to develop a major pan-European carbon dioxide storage site in the North Sea.
New high precision radiocarbon dates of mollusk shells show that modern humans occupied the Near East at least 45,900 years ago and colonized Europe from there.
Researchers looking for carbon in equatorial ice cores have found diatoms, a type of algae. Their presence is evidence of what the landscape around the Andes in Peru might have been like more than a millennium ago.
In December talks in Paris involving more than 200 countries may result in a new agreement aimed at reducing carbon emissions. In the months leading up to the conference, The Economist will be publishing guest columns by experts on the economic issues involved. Here, Christian Gollier (pictured at left) and Jean Tirole (at right) of the Toulouse School of Economics explain why a carbon tax, or a carbon cap-and-trade system, should be policymakers' preferred weapon.
THIS December France will play host to crowds of diplomats as the United Nations holds make-or-break talks on climate change. The challenge for delegates in Paris is to achieve a binding agreement that will limit the increase in the world’s temperature to no more than 2°C. It is an incredibly difficult task. But economics can shed light on which strategies have the best chance at success.Climate change is a global tragedy-of-the-commons problem. In the long run, most countries will benefit from a massive reduction in global warming. Unfortunately, there are powerful incentives to leave the burden of reducing greenhouse gas emissions to others. The approach often proposed to solve this free-rider problem is to make polluters pay a uniform price for their emissions. This encourages polluters to take all available steps to reduce emissions which cost less than that price, which guarantees that we get the best ...<div class="og_rss_groups"></div>
Particles of less than 2.5 microns emitted by vehicles have negative repercussions for bronchiolitis, pneumonia, asthma and bronchitis in children. Should their concentrations be reduced to the levels recommended by the WHO, hospital admissions of children with these illnesses would decrease, amounting to a daily saving of 200 euros, according to calculations by medical researchers.