Even without climate change, farm productivity would have to rise by 1% a year, which is a lot.

即便没有气候变化，农业产量每年也要增加1%，这可是个大数字。

youdao

The same exact circumstances may not recur any time soon, but more heatwaves are inevitable, even without climate change.

也许短期内不会发生完全一样的情况，但是即使没有气候变化，出现更多热浪也是不可避免的。

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Of course, we know that these things happen anyway, even without climate change - they may happen more often under a warmer climate, but it is wrong to blame climate change for every single event.

当然，我们知道这些事迟早要发生，即使没有气候变化——他们在更暖和的气候中发生得更频繁，但每一个气象事件都归咎于此是错误的。

youdao

India's water future was worrying even without climate change.

ECONOMIST: India's water crisis

Even if we are not responsible for the entire mechanism of climate change, we are without a doubt, the cause of a major exacerbating factor.

FORBES: Movie Review: Al Gore's Polarizing, Misleading 'Climate Reality'

Climate negotiators reported some progress to establish a fund to help mitigate the impact of climate change, even as they contended with the possibility that talks could end Friday without a global agreement to reduce emissions after 2020.

WSJ: What's News