Alan MacLeod via FAIR:
The world is currently heating at a faster rate than even the worst-case projections of the ’90s and 2000s. Experts agree that anything over a 2 degree Celsius (3.6 degrees Fahrenheit) rise in temperatures from preindustrial levels would be catastrophic, threatening organized human survival. Yet many are now expecting a 5 degree Celsius (9 degrees Fahrenheit) increase by the end of the century, barring dramatic changes in energy use, making the planet essentially unlivable. Scientists also warn that increased temperatures will create feedback loops, like melting ice sheets and the release of trapped methane, that will accelerate further warming.
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