Grind it down, pour in a sprinkle here and a dash there, and wait for results. That's the recipe for helping the oceans to absorb more of our carbon dioxide emissions: add limestone. It may not only help reduce global warming but could even reinvigorate ailing coral reefs.

Data laboriously extracted from an Antarctic ice core provide an unprecedented view of temperature, and levels of atmospheric carbon dioxide and methane, over the past 800,000 years of Earth's history.

Unable to cut down on its coal usage, it seems that the West is looking to burry its co2 emissions underground. The British government, for example, has become zealous about the carbon capture and

Carbon capture and storage, as is evident from its appellation, has three stages. At the first stage, CO2 is separated from other components of emissions like water vapour, nitrous oxide and

The Forest Department will soon finalise the mechanism for making payments to farmers under the carbon credit scheme for raising forests on private and community land as part of the World Bank-funded Mid-Himalayan Watershed Development Project.

In a recent paper in the journal Carbon Balance and Management (vol 3, p 1), Ning Zeng, an atmospheric scientist at the University of Maryland in College Park calculated that if we buried half of the wood that grows each year, in such a way that it didn't decay, enough CO2 would be removed from the atmosphere to offset all of our fossil-fuel emissions. It wouldn't be easy, but Zeng believes it could be done.

Costa Rica pioneered the use of the payments for environmental services (PES) approach in developing countries by establishing a formal, country-wide program of payments, the PSA program. The PSA program has worked hard to develop mechanisms to charge the users of environmental services for the services they receive.

The Earth's climate is changing because the composition of our atmosphere is being altered, primarily as a consequence of human activity. We are now also experiencing a non-cyclical rise in the global temperature caused by the accumulation of the so-called "greenhouse gases"--carbon dioxide, methane, nitrous oxide and others.

Few payment for environmental services (PES) schemes in developing countries operate outside of the central state's umbrella, and are at the same time old enough to allow for a meaningful evaluation. Ecuador has two such decentralised, consolidated experiences: the five-year old Pimampiro municipal watershed-protection scheme and the twelve-year old PROFAFOR carbon-sequestration programme.

Ecosystems of the Iwokrama rainforest reserve in Guyana have been sold off. A uk -based private equity firm, Canopy Capital, has purchased the rights to environmental services generated by the

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