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Ouch! They’re estimating 131 kt of methane! That’s equivalent to approx 3.93 Megatons of CO2 (in terms of its global warming impact over a century) or roughly e
by schappim 2y ago
Ouch! They’re estimating 131 kt of methane! That’s equivalent to approx 3.93 Megatons of CO2 (in terms of its global warming impact over a century) or roughly equivalent to that of a small country like Iceland or Malta annually.
- cjr 2y ago3.93 megatons of CO2 is roughly equivalent to: • About 149,714 short-haul flights, or • About 37,429 long-haul flights.
- GenerocUsername 2y agoso what I am hearing is that short-haul flights are ~24% as far as long-haul flights. Weird use of segmented flight lengths as a comparator
- sebmellen 2y agoShort haul flights use proportionally more fuel per mile flown because taking off is very fuel intensive. That said, no idea what average value the GP comment is basing their numbers off of.
- ductsurprise 2y agoTake off, climb and circles before landng time use considerably more fuel than that of cruising time, so that needs to be considered. Also, as short haul fights generally don't climb as high, they lose the benefits of high altitude cruising.
- SoftTalker 2y agoSo a couple of days' worth?
- flosstop 2y agoAre those figures the wrong way around?
- dartharva 2y agoHow much ∘C of change in global temperature does this translate to?
- HL33tibCe7 2y agoOn the order of 0. From what I read, we can expect a 1 degree increase if we release somewhere in the ballpark of 100 billion tons of CO2. Using those figures, 3.93 megatons is 0.0000393 degrees. As a point of comparison, humans release roughly 40 gigatons of CO2 per year; 3.93 megatons is 0.0098% of that. As another point of comparison, around 550 gigatons of CO2 is released (and absorbed) by the planet "naturally". 3.93 megatons is 0.0007% of that.
- amelius 2y ago> As another point of comparison, around 550 gigatons of CO2 is released (and absorbed) by the planet "naturally". So we are currently within 20% of what the planet does naturally, which seems not that bad actually.
- HL33tibCe7 2y agoUnfortunately it's not that simple, because the planet absorbs that CO2 too. So in reality, the important thing is we're going from a delta of 0 gigatons of CO2 per year, to a delta of +40 gigatons of CO2 per year.
- csomar 2y ago40 / 550 is less than 10%. That's actually a huge number considering that the planet has an "equilibrium". Your actions can affect that balance and the whole planet goes into disarray. Not saying that's what will happen, though. The planet could also just absorb our extra CO2 (which is why it's becoming greener).