Global cooling

However, beside the vast majority of people that believe that Earth is warming, there are a few scientists that say exactly the opposite: the Earth has entered a new Glaciation Era.The temperature will continue to drop and we might face in a few hundred years real polar winters at New York latitude or thick ice caps in the place of Copenhagen. This opinion has some realistic support if we check our planet's history. Every 10 000 years the Earth has suffered  glaciations or a inter glaciations move provoked by the moving of the Earth around the Sun. The orbit is not circular, but rather elliptical and it seems that now we are moving around the Sun at a greater distance than 1000 years ago.

After all the calculations we have already entered a new glaciation, but only because of the human impact and the rise of the CO2 percent in the atmosphere this process has been slowed down and even turned over to the warming part.
This means that we are not experiencing a global warming, but a global cooling. If this scientists are right or not, only the future will tell and as Einstein once said: "Everything is relative".