Wednesday, January 23, 2019 Text is available under the CC BY-SA 3.0 licence.

Ian Plimer

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If CO2 derived from modern industrialisation is the culprit for global warming, then why did the global temperature increase from 1918 to 1940, decrease from 1940 to 1976, increase from 1976 to 1998 and decrease from 1998 to the present?

Ian Plimer

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The danger is that global warming may become self-sustaining, if it has not done so already. The melting of the Arctic and Antarctic ice caps reduces the fraction of solar energy reflected back into space, and so increases the temperature further. Climate change may kill off the Amazon and other rain forests, and so eliminate once one of the main ways in which carbon dioxide is removed from the atmosphere. The rise in sea temperature may trigger the release of large quantities of carbon dioxide, trapped as hydrides on the ocean floor. Both these phenomena would increase the greenhouse effect, and so global warming further. We have to reverse global warming urgently, if we still can.

Stephen Hawking

The hypothesis that human emissions of CO2 can create global warming can be tested by measurement. ... No warming has occured since 1998. ... During that time atmospheric CO2 has increased. ... The test of the hypothesis above shows that there is no relationship between measured temperature and CO2 emissions. The hypothesis fails.

Ian Plimer

Since 1895, the media has alternated between global cooling and warming scares during four separate and sometimes overlapping time periods. From 1895 until the 1930ís the media peddled a coming ice age. From the late 1920's until the 1960's they warned of global warming. From the 1950's until the 1970's they warned us again of a coming ice age. This makes modern global warming the fourth estate's fourth attempt to promote opposing climate change fears during the last 100 years.

James Inhofe

A decrease in the quantity of legislation generally means an increase in the quality of life.

George Will

I would like to say we're at a point where global warming is impossible to deny. Let's just say that global warming deniers are now on a par with Holocaust deniers, though one denies the past and the other denies the present and future.

Ellen Goodman
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