Scientists in these three countries now have the capability to measure how much CO2 is escaping into the atmosphere, and from which areas - a notable achievement which must be helpful to the Paris Agreement. China has already been reducing its heavy dependence on coal, not least because the pollution caused to the people on the ground has been increasingly damaging to health.
As Brazil mourned the deaths of so many young men, the small town of Chapecó, where the football team is based, came to a standstill. Ironically the crash is reported to have happened because the plane ran out of fuel. What a waste.
This blog was started by the Monday Group - which was set up in April 2016. Each item contains a link back to its source, where more information can be found. Comments are welcome