Bjorn LomborgVarmennettu tili

Almost everywhere, cold deaths outweigh heat deaths Not surprisingly, many more cold deaths than heat deaths in Canada (25-to-1) https://www.sciencedirect.com/science/article/pii/S0160412017310346 …pic.twitter.com/T2hdIp4HCU

Almost everywhere, cold deaths outweigh heat deaths Perhaps surprisingly, also many more cold deaths than heat deaths in Spain (3-to-1) https://www.sciencedirect.com/science/article/pii/S0160412017310346 …pic.twitter.com/ycZQ7cwCzk

Almost everywhere, cold deaths outweigh heat deaths Perhaps surprisingly, also many more cold deaths than heat deaths in the US (6-to-1) https://www.sciencedirect.com/science/article/pii/S0160412017310346 …pic.twitter.com/JY96fseG71

Almost everywhere, cold deaths outweigh heat deaths Even in India, cold deaths outweigh heat deaths 7-to-1 https://doi.org/10.1371/journal.pmed.1002619.t002 …pic.twitter.com/90QDcvctsR

Globally, we see 300,000 heat deaths each year We see 1,650,000 cold deaths each year (5-to-1) Investigating one and ignoring the other is unsound http://ihmeuw.org/5fyg , http://ihmeuw.org/5fyf pic.twitter.com/IOoS8PVF24

Global warming means more heat waves and hence more possible heat deaths But perhaps surprisingly, heat deaths have decreased many places (Spain, Canada, Japan, South Korea, US, UK, Switzerland) likely because of air conditioning https://www.sciencedirect.com/science/article/pii/S0160412017310346 …pic.twitter.com/phHpaC4iNy

Since 1960, the US has seen more hot days affecting a much greater population Yet, the number of heat deaths has more than halved That is mostly because of air conditioning https://www.journals.uchicago.edu/doi/abs/10.1086/684582 …pic.twitter.com/JxDaWYOivN

The new research paper that got headlines across the world, finds that higher temperatures mean more heat deaths https://www.nytimes.com/2021/05/31/climate/heat-deaths-climate-change.html … https://www.nature.com/articles/s41558-021-01058-x …pic.twitter.com/oDyrShgsHK

But the new study specifically only looks at increases in heat deaths, not decreases in cold deaths by only looking at the impact from the 4 hottest months https://www.nature.com/articles/s41558-021-01058-x …pic.twitter.com/jcnXvW39aj

Yet, in a scientific article in the Lancet, some of the same co-authors looked at the full impact of climate on both heat and cold from 1990s to 2010s Yes, higher temps mean more heat deaths But higher temps mean 𝗲𝘃𝗲𝗻 𝗺𝗼𝗿𝗲 avoided cold deaths https://www.thelancet.com/journals/lanplh/article/PIIS2542-5196(17)30156-0/fulltext …pic.twitter.com/80jVv8a8I8

Using population average, twice as many people don't die from cold as die extra from heat As the researchers roughly estimate the extra deaths at 100,000, that means ~200,000 fewer die from cold Not telling the full story is not informing us well https://www.usatoday.com/story/opinion/2021/06/25/climate-change-science-media-spread-fears-ignore-possible-positives/7738009002/ …pic.twitter.com/I1Et0RwlMC

Bc data limitations, better impact studies for richer, less hot countries If we assume that missing world is more like Southeast Asia, avoided cold deaths are 'only' 50% higher than extra heat deaths (so 100K more heat deaths, 150K fewer cold deaths) https://www.thelancet.com/journals/lanplh/article/PIIS2542-5196(17)30156-0/fulltext …pic.twitter.com/etHIadTWsR

Notice, despite global warming, cold deaths are going up many places Why? Cold deaths are much harder to stop Heat deaths can be avoided w/air conditioning for a few days Cold deaths need better heating for many monthspic.twitter.com/Uh9BQxSfPP