This is to be filed under "Law of Unintended Consequences." It seems that recent warming ("record hottest" and all that) was produced by a measure intended to stop warming. This just demonstrates (again) the sorcerer's apprentice quality that pervades much climate activism. Almost All Recent Global Warming Caused by Green Air Policies – Shock Revelation From NASA BY CHRIS MORRISON Fewer fuel particles injected into the atmosphere reduce cloud droplet density and this leads to clouds that reflect less solar radiation back into space. "The world of climate science is in shock following [link -->] extraordinary findings [<-- link] from a team of high-powered NASA scientists that suggest most of the recent global temperature increases are due to the introduction of draconian fuel shipping regulations designed to help prevent global warming. The fantasy world of Net Zero is of course full of unintended consequences, but it is claimed that the abrupt 80% cut in sulphur dioxide emissions from international shipping in 2020 has accounted for 80% of global warming since the turn of the decade. Although the extra heat is described as “transient”, the warming is extraordinary and is expected to rise during the 2020s at a rate of 0.24°C a decade, 20% higher than the claimed warming trend since 1980. The news is likely to cause considerable concern among the mainstream climate hoaxers in media, academia and politics. They have had a field day of late by pointing to rises in temperature as evidence for their evidence-free prediction that the climate is in danger of imminent collapse. But the NASA scientists, working out of the Goddard Space Flight Centre, predict a trend of rising temperatures due to the IMO2020 regulations going forward, and state, “the 2023 record warmth is within the ranges of our expected trajectory”. The science behind the NASA findings, which have been published in Nature, is simple. Fewer fuel particles injected into the atmosphere reduce cloud droplet density and this leads to clouds that reflect less solar radiation back into space. As the scientists note: “IMO2020 effectively represents a termination shock for the inadvertent geoengineering experiment through a reverse marine cloud dimming through reducing cloud droplet number concentration.” In the course of their work, the team calculated large particle reductions in major shipping routes in the North Atlantic, the Caribbean Sea and the South China Sea. . . ." From the paper itself: In summary, IMO2020 represents a termination shock for the inadvertent geoengineering by global ship emissions through a reverse MCB and produces a positive forcing of + 0.2 ± 0.11 Wm−2. It is expected to provide strong additional warming rate this decade, more than doubling the long-term mean warming rate. The forcing has pronounced spatiotemporal heterogeneity. The IMO2020 effect also contributes to a strong temporary increase to the planetary heat uptake through cloud dimming, and it is around 80% of the measured increase in interhemispheric contrast of absorbed solar radiation since 2020. Our results offer useful guidance for MCB and aerosol-cloud interaction research.
