Choose your sources wisely.
How long has the Climate been Changing? For over 450,000 years of measurements at least.
Gordon Fulks PhD. is an astrophysicist who has assembled some data that is useful in today’s discussions of climate change. Sometimes the best place to start is at the beginning. Best studies determine that the Universe is 11 billion years old and that Earth is 4.5 billion years old. Earth was covered with ice until volcanic activity began to melt the ice over 4.5 million years ago. Temperatures at Vostok, Antarctica over 450,000 years determined from ice core samples, Russian Zone.
By 450,000 B.C. melting ice gave Earth an atmosphere, the source of a changing climate. Ice core samples obtained by Russian scientists in Eastern Antarctica from holes drilled 13,000 feet deep give insights into past climate conditions. The Ice Ages repeat in patterns spaced roughly 100,000 years apart. The interim warm periods let the sun help volcanoes to melt more ice which resulted in more atmosphere and more land area. A study of topography and geology shows those cycles have caused ice to retreat from land and for ocean levels to rise since time immemorial.
The graph above is a look at the most recent Ice Age followed by the Holocene Climate Optimum with its six warming periods that have characterized temperature ranges experienced for the past 10,000 years. Right now is a great time to be a human as evidenced by steady increases in world population.
The last 13,000 years of Earth’s temperatures derived from the Greenland ice core samples
Human life began during the ice age. The graph above highlights the time when conditions favoring human activity began near 8000 B.C. and continue to this day. The graph shows us we are not in danger of a warming planet. We are in the range of cooler Holocene temperatures. The rise that initiated the Modern warming period, nicknamed the “Hockey Stick”, is barely discernable at the furthest right end of the graph. A projection from the first graph which is based on ice core samples from the thickest ice in Antarctica indicates we are trending into a time of cooling that is less favorable to human activity.
The “Hockey Stick” was misrepresented by alarmist Michael Mann. For political effect Mann deliberately did not put the Hockey Stick into historical context. The historical context is best understood in the previous graph. All of this data has been provided by International Scientific Teams whose work preceded the disgraced but unfortunately prominent United Nations International Panel on Climate Change, UN/IPCC. We only know what our sources teach us. Choose your sources wisely.
|Post Date: 2021-02-27 09:55:12||Last Update: 2021-02-26 18:53:50|