原文已被隐藏，你可用 快捷键 - 或点击 显示原文 按钮来查看原文
第1段
1 .This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.
该句暂无译文！
2 .The oceans are turning acidic.
该句暂无译文！
3 .Surface waters absorb carbon dioxide produced by the burning of fossil fuels.
该句暂无译文！
4 .And those CO2 molecules react with the seawater to make carbonic acid.
该句暂无译文！
5 . Voilà,a more acidic ocean.
该句暂无译文！
6 .That's big trouble for tiny plants and animals in the sea that make shells.
该句暂无译文！
7 .Because acidic water makes it harder to produce those shells.
该句暂无译文！
8 .And once the shells do form, the acidic water also corrodes the shells.
该句暂无译文！
9 .Many marine biologists have thus been anxious that climate change may mean an end to coral reefs.
该句暂无译文！
10 .But a set of experiments undertaken in Hawaii, Moorea and Okinawa give new hope, at least in the Pacific.
该句暂无译文！
11 .Four common corals and algae were subjected to conditions that mimic oceans if CO2 concentrations in the atmosphere reached 1000 ppm, more than double the levels today.
该句暂无译文！
12 .And three out of the four could still easily form their hard calcium shells even in such an acid ocean.
该句暂无译文！
13 .That doesn't mean ocean acidification won't be bad for corals and algae.
该句暂无译文！
14 .But it does mean that across the Pacific some of these organisms can tough it out.
该句暂无译文！
15 .Whether other organisms, including us humans, could thrive in such a 1000 ppm CO2 world is whole another question.
该句暂无译文！
16 .Your minute is up, for Scientific American 60-Second Earth. I'm David Biello.
该句暂无译文！