Listen/watch the . The MIT Study said that difference would be 0.6-1.1C (not 0.2C as Trump claimed). There is another study by Bjorn Lomborg that says the Paris Accords only matters 0.17C by 2100. Both the Lomborg and the MIT Study assumed the current Nationally Determined Commitments (NDCs) continue from 2030 to 2100 with no new more commitments.
A plot from the Lomborg Study shows what is happening (noting that the Paris delta is more like 1C difference from Business of Usual by 2100)
Remember that most climatologists say we must keep the temperature rise since the pre-industrial days to 2C (goal 1.5C). Neither study would say we can keep the global temperature below 2C above pre-industrial. Thus the natural takeaway from the plot above is that (regardless of which study one believes more) we must do much more than Paris, something the Paris Accords acknowledge. The framework accepts annual updates to country's NDCs as they get comfortable with their initial steps.
We are already at 1.24C in 2016 (2017 will probably be lower maybe 1.1C; 2016 had a strong El Nino).
So the argument is whether or not 2C is an overly stringent requirement, and not whose study is more accurate. IOWs, can our grandchildren live with 3.6C(Paris - MIT Best Case) to 4.7C (Business as Usual) in 2100 and increasing thereafter? Well consider just the increase in climate related disasters in recent decades.
It is undeniable that natural climate disasters have increased at least two fold since 1980 coinciding with the increased temperature since 1980. Note that on the above chart, “Geophysical Events” (earthquakes, tsunamis, volcanoes) in purple are related to climate and they have not increased. So subtracting them we see we had ~350 catastrophes in 1980 and ~900 catastrophes in 2010 due to climatic factors. That is a 257% increase. By 2050 that would probably be at 500% increase and who knows by 2100. It is “catastrophic" to those caught up (death, injuries, houses) in these climate disasters (storms, floods, landslides, heat waves, droughts, wildfires).
Enough for now- there is much more ill effects from global warming and the costs thereof. And a lot to tell about job creation in renewables.
Trump is harming our jobs, our climate and our global leadership/reputation.
Informed by Data.
Driven by the SPIRIT and JESUS’s Example.
Promoting the Kingdom of GOD on Earth.