[viggity]

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]

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

2.0e23J = 4.78e+22 cal

[glial]

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

[idealmedtech]

That's alarmingly fast.