Hi everyone
A very serious change in the world is 'Global Warming'. It's making Antarctica melt, and the earth much hotter! I think it is even more serious than war changes, because 'Global Warming' , like in its own name, affects the whole globe and every country on it at once. I think of 'Global Warming'as an alien invasion against Earth, and all of the countries have to join forces to fight it and defeat it. If 'Global Warming' succeeds in completely melting Antarctica, the the sea level will rise and flood the entire world. Before that happens, or if it gets certain that it will happen, all living things will have to either accept their fate, or move to a different planet (The space scientists are thinking that Mars might be able to host living and breathing creatures, but they're also wondering about Titan, one of Saturn's moons.).