The article "Unusually warm winter breaks up sea ice in the Arctic" by the author Maria-José Viñas, is about the temperature and about sea ice that is more sensitive to break these days. This important environmental problem is really dangerous for humans and our ecosystems, it also proves all the bad consequences of climate change. First, it is important to know that temperature, because of global warming, is increasing everyday. The sea level is also increasing, which is really dangerous for population, environment and also lead to natural disasters. Why?