Throughout history the Earth goes through climate stages - both warming and cooling. "During the Holocene, there have been about seven major warming and cooling trends, some lasting as long as 3000 years, others as short as 650."(Carlisle) You can see this through the layers in the ice. Recently Russian scientist drilled 3.5 km of ice to acquire a specimen with information about the last 400,000 years, before mankind was emitting "harmful" CO2 gasses. They found that during the last 400,000 years the earth has scene four two-phase climate cycles; a gradual warming followed by a quick cooling. (Osokin) This proves through scientific study that the earth undergoes "climate stages" and that the globe is in reality experiencing a gradual warming but it is not caused by man. You can also see these climate changes through the rings in trees. Tree growth is slowed during cold times and is greater during warmth. By looking a specimens of trees scientist can see the
Throughout history the Earth goes through climate stages - both warming and cooling. "During the Holocene, there have been about seven major warming and cooling trends, some lasting as long as 3000 years, others as short as 650."(Carlisle) You can see this through the layers in the ice. Recently Russian scientist drilled 3.5 km of ice to acquire a specimen with information about the last 400,000 years, before mankind was emitting "harmful" CO2 gasses. They found that during the last 400,000 years the earth has scene four two-phase climate cycles; a gradual warming followed by a quick cooling. (Osokin) This proves through scientific study that the earth undergoes "climate stages" and that the globe is in reality experiencing a gradual warming but it is not caused by man. You can also see these climate changes through the rings in trees. Tree growth is slowed during cold times and is greater during warmth. By looking a specimens of trees scientist can see the