According to Katarzyna Tokarska, a climate scientist at the University of Victoria in Victoria, British Columbia, we could be at disasterously-high temperatures by the year 2300. According to previous studies, temperatures above a 4C increase mean human extinction. Even a 6C increase, below the low-end in that study, there are horrendous consequences to the ecosystem, leading to extinction of most life forms on earth.The Arctic has even more significant temperature rise coming, between 19 and 25 degrees F over the next century. That will lead to polar ice melting completely in the summer, sea level rise which would mean the loss of homes for over 90% of the earth’s population - let alone factories, businesses, and most importantly seaports. It would greatly reduce the amount of land available for agriculture.
Moreover, with a world population expected to go over 9 billion by 2050, there would not be food for us all. People with literally nothing to lose will stop at nothing to get their needs for basic survival met. With billions of desperate people, billions of climate refugees, the world will be unable to cope.
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