That vulnerability risks turning forest from carbon sink to carbon source.

而这种脆弱性存在风险，有可能将森林从碳汇变为碳源。

That vulnerability risks turning this forest from carbon sink into a carbon source.

这种脆弱性有可能使这片森林从碳转变成成碳源。

Add an economic slowdown, and forests overall could become a carbon source instead of a carbon sink.

再加上经济放缓，森林可能整体会变成碳源而非碳汇。

So a carbon source meaning. - It's a net carbon source.

- 所以碳源的意思。 - 这是一个净碳源。

But the death of these trees has gotten so severe in the Amazon Rainforest that it's actually become a carbon source.

但是这些树木的死亡在亚马逊雨林中变得如此严重，以至于它实际上成为了碳源。

Turning them from carbon sink to carbon source.

将它们从碳汇变成碳源。

Turning this forest from carbon sink to carbon source.

将这片森林从碳汇变成碳源。

Fuels derived from plants and microbes are part of the climate solution because they don't rely on fossil carbon sources like coal and oil.

来自植物和微生物的燃料是气候解决方案的一部分，因为它们不依赖煤炭和石油等化石碳源。

In the end, two compounds common in wastewater, malic acid as a carbon source and sodium glutamate as a nitrogen source, produced the most hydrogen while minimizing carbon dioxide emissions.

最后，废水中常见的两种化合物，作为碳源的苹果酸和作为氮源的谷氨酸钠，产生了最多的氢，同时最大限度地减少了二氧化碳的排放。

And for the first time in the forest observed history, a large portion of it flipped from being a carbon sink to a net carbon source of greenhouse gas.

第一次在森林中观察历史，其中很大一部分从碳汇转变为温室气体的净碳源。

Or perhaps an old way, since we already know that traditional pasturing practices can turn cattle farms from what are called carbon sources, which produce CO2, into carbon sinks, which absorb them.

或者也许是一种古老的方式，因为我们已经知道传统的放牧实践可以将养牛场从产生二氧化碳的所谓碳源转变为吸收它们的碳汇。