Warming and cooling cycles are normal

 Jack Hellner:

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Medieval warming period: from 950 to 1250.  There have been many warming and cooling periods throughout the Earth's history caused by natural and cyclical activity.  Temperatures in this period were similar to today.

Climate scientists now understand that the Medieval Warm Period was caused by an increase in solar radiation and a decrease in volcanic activity, which both promote warming. Other evidence suggests ocean circulation patterns shifted to bring warmer seawater into the North Atlantic.

Little Ice Age: 1303-1860

During this epoch, often known as the Little Ice Age, temperatures dropped by as much as two degrees Celsius, or 3.6 degrees Fahrenheit

Pre-Industrial Period from 1850 to 1900, which overlaps the Little Ice Age.

1930s: The Dust Bowl of excess warming and severe droughts.

The global warming of 1919–1939 turned to global cooling from 1940–1975.

In 1970, on the first Earth Day, we were warned that billions would die soon because of the existential threat of global cooling causing starvation.

There have been massive floods throughout history.

The years for the ten deadliest floods were 1212, 1287, 1530, 1887, 1911, 1931, 1938, 1971, 1975.  Seven occurred in China and the three earliest ones in the Netherlands.

·  "The warmest temperatures in the U.S. have not risen in the past fifty years,” Koonin writes, according to the U.S. government’s Climate Science Special Report.

·   “Humans have had no detectable impact on hurricanes over the past century,” according to the 2014 National Climate Assessment.

·   “Since the middle of the twentieth century, the number of significant tornadoes hasn’t changed much at all, but the strongest storms have become less frequent,” according to National Oceanic and Atmospheric Administration data (NOAA).

·   “The rate of global sea-level rise 70 years ago was as large as what we observe today,” according to the U.N. Intergovernmental Panel on Climate Change (IPCC).

·   Instead of droughts, “the past fifty years have been slightly wetter than average” in the United States, according to NOAA figures.

·   Rather than famine, “in the fifty years from 1961 to 2011, global yields of wheat, rice, and maize … each more than doubled,” according to the IPCC.

·   "The net economic impact of human-induced climate change will be minimal through at least the end of this century.”

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There is more.

Add this to the data for those suffering from climate hysteria.  They need to get a better sense of history.