Worst Mediterranean drought in 900 years has human fingerprints all over it | John Abraham

A new study shows that the current Mediterranean drought is likely the worst in 900 years, probably due to human-caused intensification

In a warming world, we expect to see increases in some extreme weather events. The science is pretty clear that in some parts of the world, drought and heat waves have and will continue to increase. In other areas, more severe storms along with precipitation and flooding have increased. Drought, heat waves, and floods are examples of changes to weather and climate patterns that will have costs for human society.

It's tricky to discern not only whether past extreme weather have changed, but also whether human-caused global warming is a factor. Scientists need high-quality records that go back many decades to see if there is any trend towards increasing or decreasing extreme weather. But weather is quite variable. We can see a rise or fall in extreme weather events with no apparent cause, human or natural.