And the biggest source of emissions is fossil fuel emissions.

最大的排放源是化石燃料排放。

In terms of source of emissions of greenhouse gases, it's a massive producer.

从温室气体的排放源来看，中国是一个大生产国。

And so, hyper-local monitoring enables us to understand where those pollution hotspots are and enables us to take really targeted action, to address those sources of emissions and to protect communities and protect public health at that local level.

因此，超本地监测使我们能够了解污染热点在哪里，并使我们能够采取真正有针对性的行动，以解决这些排放源，并在该地方一级保护社区和公共卫生。

And by looking at these maps, we can look for the optimal distances between both the sources of emissions, like Scunthorpe's steel plant, and the sinks, like the saline aquifers of Alberta.

通过查看这些地图，我们可以寻找排放源（如斯肯索普的钢铁厂）和汇（如艾伯塔省的盐水含水层）之间的最佳距离。

We need to transform agriculture from a source of emissions to a store of carbon, and critically, we must protect our oceans and land, the natural ecosystems that absorb half of our emissions.

我们需要将农业从排放源转变为碳储存库， 而且至关重要的是，我们必须保护我们的海洋和土地，这些自然生态系统吸收了我们一半的排放量。