Stark warning over climate change
The drumbeat of warnings over climate change continues and intesifies. This report raises the spectre of “irreversability” and states that the rate of change is “unsustainable”
The near term of climate change is poor harvests in Europe and Russia along with massive population displacement in North Africa due to the conversion of fertile areas to dessert. Massive population displacement and multiple years of poor crops spells misery for large segments of the world’s population.
In simplistic terms, the target for maximum concentration of greenhouse gases is 450ppm in order to keep global temperature change under 2 degrees Celsius. Prior to the Industrial Revolution the levels were around 275ppm. Currently we are at 380ppm and we are projected to exceed 400ppm within 10 years. The likelihood of stayig under 450 is slim or none. In simplistic terms.
A two degree Celsius rise in global temperature is expected to trigger the melting of the Greenland ice pack and other permanent ice masses leading to more than a twenty foot rise in global sea levels. The poorest nations in the world are especially vulnerable to this threat.
We might also want to consider that the rise in forrest fires, in the US and around the world, is a significant part of this process of desertification. The forrests burn in the hottest and driest years but are not able to restablish themselves in even the wetter years. This greatly accelerates the effect of gradual temperature increases.
Similarly, the fierce hurricane season batters the coasts and claims land for the sea which does not dry out and return to productivity fast enough to protect itself from the next season.
The evidence is all around us.