Newsdesk: Saving the planet was never going to be easy. Avoiding the most catastrophic effects of climate changes will require cutting carbon emissions by 50 to 80 percent over the next four decades, scientists say. After years of deadlock, 2009 was shaping up to be the year the world got its environmental act together. Now it’s looking like the global environment may be one of the biggest losers in the current financial crisis. Lower prices for oil–which some analysts predict will hit $25 a …