Besides, making electricity accounts for only 27 percent of all greenhouse gas emissions. Even if we had a huge breakthrough in batteries, we would still need to get rid of the other 73 percent. Within a few years, I had become convinced of three things: To avoid a climate disaster, we have to get to zero. We need to deploy the tools we already have, like solar and wind, faster and smarter. And we need to create and roll out breakthrough technologies that can take us the rest of the way.
