“Overpopulation in various countries has become a serious threat to the well-being of many people and a grave obstacle to any attempt to organize peace on this planet of ours.”
"With climate change, overdue asteroid strikes, epidemics and population growth, our own planet is increasingly precarious,"
"It’s our population growth that underlies just about every single one of the problems that we’ve inflicted on the planet. If there were just a few of us, then the nasty things we do wouldn’t really matter and Mother Nature would take care of it — but there are so many of us."
JMA monitors the long-term change of the global average surface temperature anomalies for the purpose of monitoring the global warming. In this page, the long-term changes of annual and monthly anomalies of the global average surface temperature are shown.
https://ds.data.jma.go.jp/tcc/tcc/products/gwp/temp/ann_wld.html