Carbon Offsets Daily

reports that a group of US scientists, led by a physicist at Columbia University in New York, is working towards creating a device that will "suck" or extract carbon-dioxide from the air. They say that a prototype of the machine should be ready in two years time. Previous attempts at creating such machines (or scrubbers) were in vain due to their high energy requirements. However, Lackner and his team claim that they will use changes in humidity to tackle this problem:

... The team says it can trap the CO2 from air on absorbent plastic sheets called ion exchange membranes, commonly used to purify water. Crucially, it has discovered that humid air can then make the membranes "exhale" their trapped CO2.

They still need to work out how exactly the carbon-dioxide captured by the device will be disposed off. Tentative solutions include using the CO2 in greenhouses for plant growth or to grow algae which could be used for food, fertilizer or fuel.

Lackner admits that their invention will not serve as a panacea for the problem of global warming. However, 

... the team says the technology may be the best way to avert dangerous temperature rises, as fossil fuel use is predicted to increase sharply in coming decades despite international efforts.

According to a in the Guardian, controversy and criticism surround the UN’s (CDM). The CDM is a system established under the that gives industrialized nations the opportunity to earn CDM credits or certified emission reductions (CERs), by undertaking investments in emission reduction technologies in the developing world. The CDM is supposed to ensure that the projects meet the “additionality” criterion. That is to say, the emission reduction projects wouldn’t have been possible without the sales of carbon credits.

The article reports the findings of two Stanford University academics, David Victor and Michael Wara who claim that a large number of projects under the CDM are not “additional”. It also cites a study by the U.S. watchdog group, , which states that as many as 75 per cent of the registered CDM projects had been completed by the time they were approved. It seems that the crux of the problem is that a good part of the CDM money is being invested in projects that, as Victor puts it, “would be built anyway”.

Nissan- the Japanese automaker, today introduced a first-of-a-kind in Japan that is linked to the sale of a vehicle. In this eco-friendly endeavor, Nissan has joined hands with Carbon Offset Japan, an environmental non-profit organization adhering to the principals of the Under the carbon offset program, for every March Collet sold, Nissan will pledge one ton of carbon credits (equivalent to carbon-dioxide emissions from 4,971 miles of driving) under Carbon Offset Japan.

With the number of cars on the road ever increasing and the concomitant rise in carbon emissions, such programs are a move in the right direction. The above-mentioned campaign, by allowing customers to offset the carbon footprints of their vehicles will reduce the adverse environmental impact of driving. With this initiative, Nissan has taken in keeping with the