The political narrative on that humans are causing most or all of climate change, and the claim that the science behind this notion is "coherent", has been dealt a severe blow with the publication of the "World Climate Declaration" (WCD), signed by more than 1100 scientists and experts. The authors, who come from all over the world and are led by Norwegian Nobel Prize-winning physicist Professor Ivar Giaever, argue that the climate situation is not critical. Climate science has turned into a debate based on beliefs rather than sound science.
Since the world emerged from the "Little Ice Age" around 1850, it has warmed significantly less than the IPCC predicted based on modelled human impacts. "The gap between the real world and the modelled world tells us that we are far from understanding climate change," the WCD concludes.
In Italy, Professor Antonino Zichichi, together with 48 local science professors, recently declared that human responsibility for climate change is "unjustifiably exaggerated and that catastrophic predictions are not realistic". In their scientific view, "natural changes explain a significant part of the global warming observed since 1850".
WCD document
Climate models have many shortcomings and are far from credible as a global policy tool. They magnify the impact of greenhouse gases such as carbon dioxide, but do not take into account any positive effects. CO2 is not a pollutant. "It is essential for all life on Earth. More CO2 is good for nature because it greens the Earth; the extra CO2 in the air has stimulated the growth of the world's plant biomass. It is also good for agriculture, increasing crop yields around the world.
Scientists explain that there is no statistical evidence that global worming is making hurricanes, floods, droughts and similar natural disasters more frequent or more severe. "There is no climate emergency," the declaration adds.
