The moment when failures became apparent

Still racing toward the cliff.

The hottest year in recorded history casts doubts on humanity’s ability to deal with a climate crisis of its own making, senior scientists have said.

As historically high temperatures continued to be registered in many parts of the world in late December, the former Nasa scientist James Hansen told the Guardian that 2023 would be remembered as the moment when failures became apparent.

“When our children and grandchildren look back at the history of human-made climate change, this year and next will be seen as the turning point at which the futility of governments in dealing with climate change was finally exposed,” he said. “Not only did governments fail to stem global warming, the rate of global warming actually accelerated.”

His comments are a reflection of the dismay among experts at the enormous gulf between scientific warnings and political action. It has taken almost 30 years for world leaders to acknowledge that fossil fuels are to blame for the climate crisis, yet this year’s United Nations Cop28 summit in Dubai ended with a limp and vague call for a “transition away” from them, even as evidence grows that the world is already heating to dangerous levels.

Limp and vague and wholly empty. They can’t do more even if they want to. If they try they won’t be world leaders any more.

Veteran climate watchers have been horrified at the pace of change. “The climate year 2023 is nothing but shocking, in terms of the strength of climate occurrences, from heatwaves, droughts, floods and fires, to rate of ice melt and temperature anomalies particularly in the ocean,” Prof Johan Rockström, the joint director of the Potsdam Institute for Climate Impact Research in Germany, said.

He said these new developments indicated the Earth was in uncharted territory ​​and under siege. “What we mean by this is that we may be seeing a shift in Earth’s response to 250 years of escalated human pressures … to a situation of ‘payback’ where Earth starts sending invoices back to the thin layer on Earth where humans live, in the form of off the charts extremes.”

Rockstrom was among the authors of the 2018 “Hothouse Earth” paper, which warned of a domino-like cascade of melting ice, warming seas and dying forests could tilt the planet into a state beyond which human efforts to reduce emissions will be increasingly futile.

Check, check, check.

This is as good as it’s going to be.

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