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The wisdom of Ramez Naam, on climate change

Summary:
From his tweetstorm here are a few bits: Our biggest climate problems – the sectors that are both large and that lack obvious solutions, are: a) Agriculture and land use changes (AFOLU in the graphic) and b) Manufacturing / Industry. Together, these are 45% of global emissions. And solutions are scarce. 11/ I’m not saying that clean electricity or transport are solved. They’re not. But in electricity, we have solar, wind, batteries growing & getting cheaper & on path for 70-80% decarbonization *at least*. Same with electric cars and trucks. We have momentum in those sectors. 12/ We do NOT have momentum in reducing carbon emissions of agriculture or manufacturing. In agriculture, livestock methane emissions + deforestation to graze livestock are biggest problems. And meat consumption is

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From his tweetstorm here are a few bits:

Our biggest climate problems – the sectors that are both large and that lack obvious solutions, are: a) Agriculture and land use changes (AFOLU in the graphic) and b) Manufacturing / Industry. Together, these are 45% of global emissions. And solutions are scarce. 11/

I’m not saying that clean electricity or transport are solved. They’re not. But in electricity, we have solar, wind, batteries growing & getting cheaper & on path for 70-80% decarbonization *at least*. Same with electric cars and trucks. We have momentum in those sectors. 12/

We do NOT have momentum in reducing carbon emissions of agriculture or manufacturing. In agriculture, livestock methane emissions + deforestation to graze livestock are biggest problems. And meat consumption is doubling in next 40 yrs. This should scare you more than coal. 13/

In industry, despite progress in recycling steel, *primary* steel production is still incredibly carbon intensive. As is cement. As is much of manufacturing. We haven’t reached the “solar cheaper than coal” or “EVs cheaper than gasoline” tipping points there. We need to. 14/

If the US is serious about climate policy, it ought to focus on these two sectors – agriculture and industry – that are soon to be the two largest emissions sources, and lack solutions. We should press to invent solutions, drive them down in price, and spread them globally. 16/

Do read the whole thing.

The post The wisdom of Ramez Naam, on climate change appeared first on Marginal REVOLUTION.

Tyler Cowen
Tyler Cowen is an American economist, academic, and writer. He occupies the Holbert C. Harris Chair of economics as a professor at George Mason University and is co-author, with Alex Tabarrok, of the popular economics blog Marginal Revolution. Cowen and Tabarrok have also ventured into online education by starting Marginal Revolution University. He currently writes the "Economic Scene" column for the New York Times, and he also writes for such publications as The New Republic, the Wall Street Journal, Forbes, Newsweek, and the Wilson Quarterly.

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