The world's forests are at risk of becoming a source of planet-warming emissions instead of soaking them up like a sponge unless greenhouse gases are controlled, scientists said.

Deforestation emits 20 percent of the world's carbon dioxide when people cut and burn trees, but standing forests soak up 25 percent of the emissions.

Pakistan is deficient in forest resources, as only 5 percent of total geographical area of the country is under forest cover and that, too, is under pressure due to various factors, including use of forest lands for non-forestry purposes and illegal logging.

New science predicts climate is changing faster than estimated SCIENTISTS from around the world who met in Copenhagen, Denmark, from March 10 to 12, suggested sea level increase due to global warming could be more than the earlier projections. There is worse news. Forests may not be effective carbon sinks that can save the planet from the negative impacts of temperature rise as they would not

The Punjab Forest Department and Engro Polymer and Chemicals Limited (EPCL) on Monday signed a memorandum of understanding (MoU) at the Chaanga Maanga Forest for implementing a plantation project.

Carbon dioxide captured from the chimneys of power stations could be safely buried underground for thousands of years without the risk of the greenhouse gas seeping into the atmosphere, a study has found.

Injecting CO2 into deep geological strata is proposed as a safe and economically favourable means of storing CO2 captured from industrial point sources. It is difficult, however, to assess the long-term consequences of CO2 flooding in the subsurface from decadal observations of existing disposal sites.

Nitrogen-based fertilisers have helped all but eradicate famine in large parts of the world. But reactive nitrogen in circulation has now doubled. Owen Gaffney asks, what effect is this having on the carbon cycle?

Could reviving the ancient technique of charcoal making really solve the global food crisis, halt deforestation and lock up carbon dioxide for good? Chris Goodall sifts fact from myth on biochar.

The protection of tropical forests will be one of the main pillars of the new climate agreement. For deforestation currently accounts for one-fifth of global CO2 emissions. There is disagreement over how forest conservation should be funded, however. The industrialised countries want to include it in the international emissions trade.

The Conservation Reserve, which pays owners to idle fragile U.S. farmland, could become one of the largest carbon sequestration programs on private land, an Agriculture Department official said on Wednesday.