Climate change

... To
understand the current climate, it is essential for us to know the evolution of
past climates. studying climate variability over the long term provides a
better understanding of the modes of climate variability. The speed and magnitude
of the increase in temperature at the Earth's surface is the first indicator of
climate change. Reconstructions of the past 2000 years of climate show
decades-long periods when temperatures, locally, were as warm as they are now;
Another important marker of climate change on our planet Earth, the blue
planet, is the splitting of glaciers...