April 10, 2007 — Planting new trees in snow-covered northern regions may actually contribute to global warming as they have the counter-effect of tropical forests, according to a study out Monday.

While rainforests help cool the planet by absorbing carbon dioxide and producing clouds that reflect sunlight, the dark canopy of Canadian, Scandinavian and Siberian forests catches sunrays that would be reflected back to space by the snow, the study said.

The study, published Monday in the online edition of the Proceedings of the National Academy 
of Sciences, found that reforestation projects in the tropics would help mitigate global warming, but such projects 
would be "counterproductive" in high latitudes.

PS. Как и предыдущий пост не оптимистично.....американцы - идиоты...