According to a UN weather report that was leaked earlier this week, the UN weather experts predict a grim future for our planet.By the year 2050 the temperature will have risen 3 degrees Celsius, it is still too early to say if it is caused by emission of green house gasses, or if it’s a result of the ever changing climate of the planet.The rise in the world’s temperature will to begin with cause floods and draughts. It will also be the source of warmer oceans which in the end will feed larger and more violent hurricanes, making hurricanes like Katrina a common thing.After a while, the increased temperature will have caused a significant melting of ice in the Polar Regions. This will not only be the end of many unique animals in those regions, but it will also cause a drop in the salinity of the oceans around the poles.A drop in salinity will slow the Gulf Stream down, and in time, this will cause a drop in the ocean temperature that will be the start of a new ice age in northern Europe.This may be the biggest challenge or threat to face mankind ever.