So cut to now. We still have an energy crisis, and now we have a climate crisis as well. You know, so humans generate about 12 trillion watts, or 12 terawatts, from fossil fuels.
所以直到现在，我们仍然还有能量危机， 现在我们还同时有环境危机，你知道的。 所以人类生产了大概十二万亿瓦特， 或12兆瓦，从化石燃料中。