The sun sends energy in light form and heat to
us, because the Earth is not able to absorb all the
energy devuelbe a part to the space. A part of
given back energy is absorvida by the calls
conservatory gases, but there is an excess of these gases (in special CO2) can have a heating
global. consequences: the polar caps melt and is a greater amount of water therefore many
families must move away of the coast.