TADEAS:

https://michaelmann.net/content/comments-new-article-james-hansen

hansen

2023 Global warming in the pipeline
https://academic.oup.com/oocc/article/3/1/kgad008/7335889

Improved knowledge of glacial-to-interglacial global temperature change yields Charney (fast-feedback) equilibrium climate sensitivity 1.2 ± 0.3°C (2σ) per W/m2, which is 4.8°C ± 1.2°C for doubled CO2. Consistent analysis of temperature over the full Cenozoic era—including ‘slow’ feedbacks by ice sheets and trace gases—supports this sensitivity and implies that CO2 was 300–350 ppm in the Pliocene and about 450 ppm at transition to a nearly ice-free planet, exposing unrealistic lethargy of ice sheet models. Equilibrium global warming for today’s GHG amount is 10°C, which is reduced to 8°C by today’s human-made aerosols. Equilibrium warming is not ‘committed’ warming; rapid phaseout of GHG emissions would prevent most equilibrium warming from occurring. However, decline of aerosol emissions since 2010 should increase the 1970–2010 global warming rate of 0.18°C per decade to a post-2010 rate of at least 0.27°C per decade. Thus, under the present geopolitical approach to GHG emissions, global warming will exceed 1.5°C in the 2020s and 2°C before 2050. Impacts on people and nature will accelerate as global warming increases hydrologic (weather) extremes. The enormity of consequences demands a return to Holocene-level global temperature. Required actions include: (1) a global increasing price on GHG emissions accompanied by development of abundant, affordable, dispatchable clean energy, (2) East-West cooperation in a way that accommodates developing world needs, and (3) intervention with Earth’s radiation imbalance to phase down today’s massive human-made ‘geo-transformation’ of Earth’s climate. Current political crises present an opportunity for reset, especially if young people can grasp their situation.

TADEAS:

TUHO: jako že deep adaption goes mainstream, nebo nějaký novinky? Díky za případné tldr

The impending threat of climate calamity is forging a new breed of subnational statesmen from California guided by a political philosophy that could be called “planetary realism.”

Their view departs from the old “realist” school of foreign policy that regards nation-states as the principal actors on the world stage engaged in an endless struggle against others in pursuit of securing their own national interests.

Reality these days dictates that this new realism supplants the old when it comes to the convergence of critical common challenges that are beyond the scope of remedy by any one nation or bloc of nations. As the Earth’s biosphere cascades toward unlivable conditions, the security of each depends inextricably on the other.

California’s Planetary Realism - NOEMA
https://www.noemamag.com/californias-planetary-realism/?

TUHO: ale teda je to strasny cteni, uplne se z nej svira zaludek