Climate Change (hoax or real?)

Climates by their very nature change and the climate on our planet has gone through numerous changes long  before we appeared on the scene. If we're ever going to have an intelligent discussion about this contentious issue we need to ask if there is a difference between "human" caused climate change and non-human caused climate change. The climate of our planet went through a multitude of changes long before our species started making mischief.  Many of those changes made it possible for life to even exist on our little rock.. It took probably a billion years just to create enough oxygen for life to emerge from the sea and walk on solid ground. For much of our history the planet was covered by ice. Over the eons incoming asteroids and erupting volcanoes have caused significant changes in the atmosphere and changes in temperature while killing millions of species of life. Natural processes such as the wobble of the earth and periodic changes in  our orbit around the sun, as well as periodic reversals of our magnet field have all contributed  to climate change. Variation of  the temperature of the oceans have been a major cause of changes in climate long before human activity became significant. Recently human activity has become a measurable factor in climate change as well. Those who seek to deny that human activity can contribute to climate change tend to exclude our species from the natural processes of nature. In fact we are just as much a part of nature as are volcanoes and asteroids. Once we face that fact we can free ourselves from our ego-centric cosmic sense of  guilt and set about the task of seeing what we can do to limit the extent of our influence on our climate - remembering all the while that earth's climate is destined to go through many more climate changes whether or not we continue to survive as a species. History shows that the species which do survive over the long period are those that adapt to change. We've proven to be one of the more intelligent and adaptable species to inhabit this planet so far. This is no time to bury our heads in the sand and deny that our activities have no effect on our climate.