Photo: Bill Metcalfe

LETTER: Radical action needed on climate

From reader Brian Zacharias

It is obvious to me that we do not have 10 years to fix the climate crisis. This is why. For more than 10,000 years of human civilization, until the last 100 years, atmospheric carbon dioxide was below 300 parts per million. It is now over 400 ppm and we continue to pollute and increase that amount at an alarming rate.

More than three million years ago when CO2 was over 400 ppm, ocean levels ranged between five and and 40 metres higher than today.

During the last 150 years, humans have increased the Earth’s CO2 levels from 280 ppm to over 400 ppm. The last time CO2 levels rose that quickly was 55 million years ago. Plants and animals could not adapt and there was mass extinction. Climate disruption is elementary physics: more carbon equals more heat and more water in the atmosphere, resulting in more severe weather.

The evidence is overwhelming. We can possibly reduce the impact by taking radical action now. This is not happening because the majority of the Earth’s population is either unaware or is in a state of denial. Many people refuse to accept that we have visited this disaster upon ourselves.

The information in this letter is taken from another letter that appeared in the Star in January 2016 from the national manager of Citizens’ Climate Lobby Canada.

Brian Zacharias


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