A quartet of Italian scientists are claiming that a review of current extreme weather data suggest the world is not experiencing a “climate crisis,” contra the claims of most scientists and leaders around the planet.

Activists and experts have long claimed that climate change will bring about an increasingly unstable atmosphere, one that is prone to ever-more-extreme weather events including more severe storms, hurricanes, tornadoes and droughts, among other phenomena.

In a paper titled “A critical assessment of extreme events trends in times of global warming” published earlier this year at the European Physical Journal Plus, four Italian researchers claim that “on the basis of observational data, the climate crisis that, according to many sources, we are experiencing today, is not evident yet.”