Friday, March 15, 2019

Greta Thunberg, student protesters should demand better solutions to climate change

By Bjorn Lomborg. Excerpt:
"The Paris Agreement on climate change will deliver little. Even if all pledges are fulfilled, the world will breach its 1.5°C promise before 2030Recent analysis shows that of almost 200 signatories, only 17 — including Algeria and Samoa — are meeting their commitments, mostly because they promised so little.

Yet this paltry achievement will be the most expensive policy in all of history, costing $1-2 trillion in lost growth each year by 2030.

Climate school strikes would make more sense if we had solved every other challenge. But this year will see 5.4 million children die before the age of five; a quarter billion kids out of school; almost a billion people starving, and more than two billion lacking water and sanitation.

Despite enthusiasm for Thunberg’s campaign among liberal newspaper editors in Europe and the USA, climate change comes dead last among priorities for the world’s poorest. The UN asked nearly 10 million people what mattered most. They said health, education, jobs and nutrition, and placed climate 16th of 16 priorities.

What could kids do that would make a real difference? They could help reveal when grown-up politicians make things up.

'End of the world' talk is just to scare people

The politicians who deny climate change’s existence are not telling the truth. Those who say “the end of the world” is starting a decade or so from now are not either. They’re just scaring people.
According to UN scientists, if we do absolutely nothing to stop climate change, its impact will be equivalent to a reduction in our incomes of between 0.2 and two percent in the 2070s, five decades from now. Keep in mind that by the 2070s, personal incomes will have risen by 300-500 percent. Far from the “end of the world,” what we should expect is the same as the impact of a single economic recession over the next half-century.

The children should also challenge alarmist headlines and insist information comes from the more relevant UN climate panel.

At every turn we’re told that climate change is causing more extreme weather like hurricanes. But UN climate scientists find “no significant observed trends” in global hurricane frequency over the past century. In the USA, the trend of all land-falling hurricanes has been declining since 1900, as has that of the most damaging hurricanes. A major study in Nature shows global hurricane damage costs about 0.04% of the world’s GDP. Even assuming that warming makes hurricanes much more damaging in 2100, increased prosperity and resilience means the cost will halve to 0.02% of GDP. 

Since 1990, the global costs of all weather-related disasters compared to GDP have decreased.

School kids should call out silly adults 

The school strikers should call on decision-makers to make fewer empty promises like Paris, and insist on effective policies like investing far more in research and development to ensure the price of green energy drops below fossil fuels. The young protesters might be surprised to know such policies are backed by both Bill Gates and former President Obama.

We’re often told that solar and wind energy are already cheaper than fossil fuels, and that only political willpower is needed to transition. Yet, today the world spends $129 billion to subsidize inefficient solar and wind, which only deliver about 1 percent of global energy. The International Energy Agency estimates that even by 2040, after $4.3 trillion more of subsidies, they will cover just over 4 percent of global energy. Adjusting for intermittency, the IEA finds existing coal power remains cheaper than additional solar and wind in all major markets."

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