全球变暖加速原因引发科学界分歧

Whether human-made climate change or natural fluctuations are to blame, it’s important we understand what is behind the recent surge in global temperatures, reports Alec Luhn TEMPERATURES over the past three years have been even higher than expected, provoking a debate among scientists. Almost everyone agrees that global warming has accelerated. But some researchers say it is speeding up even more than climate models show, while others argue that the surge in temperatures is due to natural fluctuations that will soon go away. Depending on who is right, we could have even less time than we thought to avoid or adapt to catastrophic impacts. …