Scientists say that in one billion years from now, all of the water on Earth could disappear, making it more like Venus. And for once it’s not due to climate change. Scientists say the Sun’s increasing brightness evaporates more and more water from the Earth’s oceans, which releases carbon dioxide into the atmosphere which is turn heats up the Earth’s atmosphere which leads to more evaporation. It’s a vicious, vicious cycle. And they say the cycle will keep repeating until it reaches a point of no return.