But some environmentalists remain skeptical that offsets can reduce greenhouse gases to avoid catastrophic warming of the atmosphere. (articles.latimes.com)
But, they argue, it's not the last step or perhaps even the most important step in what will be a long battle to avoid catastrophic warming. (scientificamerican.com)
Coal use is growing globally and, to avoid catastrophic warming, climate scientists say we must change the way we tackle carbon emissions (newscientist.com)