if we run out of oil, we have much, much bigger problems. even if you take claimed reserves with a healthy dose of skepticism -- which you should, because oil-

if we run out of oil, we have much, much bigger problems. even if you take claimed reserves with a healthy dose of skepticism -- which you should, because oil-producing nations treat those reserves as assets that they can borrow against -- if we burn all of that oil we'll be at something like 5C+ of warming. for reference, when the planet was 4C cooler than the modern era, during the last ice age, the place you sit now was likely under 1km of ice.