That ' s enough to see everything twice . <| sep |> limate change is the dips and raises in the average temperature that happens every couple of decades and has been easily documented . The current changes in our temperature are very similar to thatNo , they are not . Again , your ignorance and spreading of misinformation is hurting all of us . Do some research before you speak about global problems or you ' re just contributing to the problem . Models predict that Earth will warm between 2 and 6 degrees Celsius in the next century . When global warming has happened at various times in the past two million years , it has taken the planet about 5 , 000 years to warm 5 degrees . The predicted rate of warming for the next century is at least 20 times faster . This rate of change is extremely unusual . NASA