The Earth is experience a heating trend, but there is scientific
evidence that this heating seems to be part of a 1,500-year cycle of
moderate temperature sway. It has long been accepted that the Earth has
experienced climate cycles, most notably the 90,000-year Ice Age
cycles. But in the past 20 years or so, up to date science has
discovered evidence that within those broad Ice Age cycles, the Earth
also experiences 1,500-year warming-cooling cycles. Evidence of the
global nature of the 1,500-year climate cycles includes very long-term
proxies for temperature change - ice cores, seabed and lake sediments,
and fossils of pollen grains and tiny sea creatures. Shorter-term
proxies include cave stalagmites, tree rings from trees both living and
buried, boreholes and a wide variety of other temperature proxies.
So, is the Earth currently experiencing a warming trend? Yes. Are
human activities, including the burning of fossil fuel and forest
conversion, the primary - or even significant - drivers of this current
temperature trend? The scientifically appropriate answer - cautious and
conforming to the known facts - is: We will see.
let us realize that we can still change what has been damaged
and what has been done...........
the big QUESTION is,is it the cause of what human has done or is it by nature???