Agence France-Presse: Land within the Arctic circle is likely to experience explosive "greening' in the next few decades as grass, shrubs and trees thrive in soil stripped of ice and permafrost by global warming, a study said on Sunday.
Wooded areas in the Arctic could increase by as much as 52 percent by the 2050s as the so-called tree line -- the maximum latitude at which trees can grow -- shifts hundreds of kilometers (miles) north, according to computer simulations published in the journal Nature Climate Change....