Chart has baseline at ~1995. They say we reached 200 zettajoules around 2019. 20... | Hacker News

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		viggity on Jan 12, 2022 \| parent \| context \| favorite \| on: World ocean temperatures in 2021 were the hottest ... Chart has baseline at ~1995. They say we reached 200 zettajoules around 2019. 200 zettajoules => 2.0e23 J * 4.184 J/cal => 8.36e+23 calories They say this is the energy absorbed by top 2000 meters of the oceans. There are 84.8 million sq km of ocean. 2000m * 84.8e6 => 1.69e20 liters of water. 1000 calorie to warm 1L of water by 1 deg C. 1.69e20 L / 8.36e23 cal => warmed by 0.2 deg C since 1995.

MatteoFrigo on Jan 12, 2022 | [–]

Don't you want to divide J by (J/cal) to get cal (as opposed to multiply)?

2.0e23J = 4.78e+22 cal

glial on Jan 12, 2022 | | [–]

If my calculations are correct, that's the equivalent of 52 billion Hiroshima bombs.

idealmedtech on Jan 12, 2022 | [–]

That's alarmingly fast.

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