Such is our dependence on fossil fuels, and such is the volume of carbon dioxide already released into the atmosphere, that many experts agree that significant global warming is now inevitable.

我们对化石燃料的依赖如此之深，已经排放到大气中的二氧化碳又是如此之多，以至于许多专家一致认为，目前情况下全球变暖是不可避免的。