Two dams collapsed in the Hulunbuir proince on Sunday, July 18.
6,660 people were affected; 53,800 acres of farmland was flooded; 22 bridges, 124 culverts, and 15.6 kilometres of highway were destroyed….Casualties are unknown.
On July 20 was reported heavy rains in the Henan province caused flooding of the Yellow river and its tributaries. The yellow river normally does not even reach the ocean for 3 months of the year!
In Europe flooding occurred in at least 7 countries. It started with heavy rains in the beginning of July, some areas received 4 inches of rain, over three times the normal rainfall for all of July, then on July 14 fell another 4 inches. The dams were already full to the brim, so many areas were flooded.
Here is a very good summary of the events in Europe, and as you expected, climate change is blamed.
What did he mean by “We are now officially in the era of climate change.”
Europe and China have always had floods. In fact, casualties have gone down substantially in the last hundred and fifty years. Here is a chart from Europe:
Dams has always been important since the beginning of industrialization, first as water wheels to provide power, then with electricity the rivers were really exploited to provide hydroelectric power. Flood control was also important, and there is a trade-off, which is more important, electric power or flood prevention? To maximize electric output you want to have the dams filled to the brim at all times, for flood control you want to have the dams at half full, to always be ready to absorb the next rain. The problem is that in so doing the dams only produce 70% of maximum energy. To complicate matters, the last ten years there has been a large investment in wind and solar energy, and when the wind doesn’t blow and the sun doesn’t shine, the hydro-electric power storage will have to fill in the gaps, if we are to have any clean energy at all times.
This was the case in Europe in July. The early rains had filled up the dams to within a foot of maximum, and there had not been any controlled releases to prepare for the additional rains expected. Bureaucrats hate to do controlled releases, they see billions of Kilowatt hours go to waste. The bureaucracy failed, these decisions must be made with no delay, but if politicians rather than technically competent people are to make the decisions, the time delays inherent in any bureaucracy will make disasters like these happen again and again.