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The International Monetary Fund (IMF) is analyzing damage due to COVID and projecting further severe consequences if current policies persist. They state “despite involving short term economic costs, lockdowns may lead to faster economic recovery by containing the virus”

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Note: This report doesn’t do a dynamic analysis that makes things much clearer, but it does a thoughtful statistical analysis based upon increasingly available data.

https://t.co/5Xmt8y7lCL

A few more quotes:

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“The analysis also finds that lockdowns are powerful instruments to reduce infections, especially when they are introduced early in a country’s epidemic and when they are sufficiently stringent.”

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“lockdowns become progressively more effective in reducing COVID-19 cases when they become sufficiently stringent. Mild lockdowns appear instead ineffective at curbing infections.”

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“The results suggest that to achieve a given reduction in infections, policymakers may want to opt for stringent lockdowns over a shorter period rather than prolonged mild lockdowns...

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EVs DO NOT EMIT MORE PM

Recently @OECD published a report about particulate matter (PM) from road transport. Newspaper headlines blared that electric vehicles where worse than combustion vehicles. That conclusion was wrong according to the report itself.

Let me show you.


The report (published december 7) can be found here:
https://t.co/1HpicKexOt


It's main point is well taken: as cars get cleaner, fine particles emitted by brakes, tires and road surfaces will become more important.
The table comparing electric and combustion engines is on page 92. I took averages of low and high values to get the graph in the first tweet.


I merely took the averages. To get this.


I think it is a terrific report that pulls together a LOT of literature on fine particles that cars spew into the air and that make us sick.

We have ignored this problem for too long, and there's more here than simply exhaust!