未来几十年全球面临气候变化加剧的考验

联合国政府间气候变化专门委员会近日发布报告称，未来几十年里全球所有地区都将面临气候变化加剧的考验。

 

The world's leading scientists have projected that in the coming decades, there would be increasing heat waves, longer warm seasons and shorter cold seasons.

全球顶级科学家预测，在未来几十年里，暖季将变得更长，冷季将更短，同时极端高温等极端天气将变得更加频繁。

 

According to the latest Intergovernmental Panel on Climate Change (IPCC) report , climate change is also intensifying¹ the water cycle, bringing more intense rainfall and associated flooding, as well as more intense drought in many regions.

联合国政府间气候变化专门委员会发布的这份报告表示，气候变化将加速水循环，在带来更多强降雨、洪涝灾害的同时也会导致许多地区更加严重的干旱。

 

报告明确指出：

 

Human activity was “unequivocally” the cause of rapid changes to the climate, including sea level rises, melting polar ice and glaciers², heat waves, floods and droughts.

毫无疑问，人类活动是海平面上升、极地冰川融化、高温、洪水以及旱灾等气候快速变化事件的原因。

 

Many of the changes observed in the climate are unprecedented³ in thousands, if not hundreds of thousands of years, and some changes already set in motion -- such as continued sea level rise -- are irreversible over hundreds to thousands of years.

我们观察到的很多气候变化是几千年或者几十万年来前所未有的，而海平面不断上升这样已经发生的变化不可逆转，在未来几百年到几千年间都将持续发生。

 

Sea levels are expected to rise 2 to 3 meters by 2300 even if warming is kept below 2 degrees, but could reach 5 to 7 meters or higher if warming continues unabated.

就算全球升温控制在2摄氏度之内，到2300年，海平面仍然会上升2到3米，而如果全球变暖的趋势没有缓解，则海平面到时可能会上升5到7米。

 

The authors believe that 1.5C will be reached by 2040 in all scenarios⁴. If emissions⁵ aren't slashed⁶ in the next few years, this will happen even earlier.

报告作者认为，无论情况如何发展，到2040年，全球升温将达到1.5摄氏度。如果未来几年不大力减排，这一天会来得更早。

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