The above graph, using data from NASA, plots monthly average global temperatures as a departure from the 1951-1980 average. We can see the last two data points in the blue line shooting up and heading off the chart — first…
We can reach the goal of zeroing-out greenhouse gas release by switching all fossil fuel burning to clean energy. But, … that alone is unlikely to keep the average global temperature rise to 1.5C degrees. We must also remove greenhouse gas from the atmosphere.