Do it together. we have to end covid-19, not just at home which we re doing but everywhere. there s no wall high enough to keep us safe from this pandemic or the next biological threat we face and there will be others. it requires coordinated mu multilateral action. we must all commit to an ambitious climate action if we re going to prevent the worst impacts of climate change limiting global warming to no more than 1.5 degrees celsius and lead the global transition to clean energy technology. you know, over in the tank in the pentagon when i first was elected vice president with president obama, the military sat us down to let us know what the greatest threats facing america were, the greatest physical threats. and this is not a joke, you know what the joint chiefs told us the greatest face facing america was global warming. because there will be