Letter
Concerning climate predictions
Many articles cite low temperature changes like 1.5 degrees. I am not a climate scientist but I used avaliable data in an effort to predict how much temperature was expected to rise if all fossil fuels were used up at the current pace. Available data led me to conclude that it would take 200 years and that the temperature rise would be at least 10 degrees C. But more likely higher. I included the effects of permafrost and decrease in earth albedo due to melting ice. I think it is useful to point out that kind of concrete problem so people would have something practical to think about 1.5 degrees doesn’t sound like a big deal to most people But 15 degrees does sound like a problem. In temperate Sweden eg in Stockholm they wouldn’t be able to have a cool bedroom in the summer even if they dug down to where the yearly average temperature reigns. Some 6 meters underground. I can imagine that Africa would need a constant high power consumption just for cooling. I am not familiar with Australia’s climate but you get the idea
— Peter Grafstrm from Sweden