Air New Zealand has abandoned a 2030 goal to cut its carbon emissions, blaming difficulties securing more efficient planes and sustainable jet fuel.
The move makes it the first major carrier to back away from such a climate target.
The airline added it is working on a new short-term target and it remains committed to an industry-wide goal of achieving net zero emissions by 2050.
The aviation industry is estimated to produce around 2% of global carbon dioxide emissions, which airlines have been trying to reduce with measures including replacing older aircraft and using fuel from renewable sources.
Again, the issue is that once you burn fossil fuel, you are not turning it into fossil fuel in any meaningful amount of time.
On the other hand, let’s say that a field used for producing plants for biofuel does not capture any carbon at all to simplify. So deforesting an area releases all the carbon a forest held. The difference is that the fossil fuel gives you energy one time, while the field produces it yearly. We need energy yearly. So if you deforest an area for biofuel, you release CO2 from deforestation but all the CO2 released in the future is what was recaptured by the plants. It is one time CO2 release for perpetual energy delivery. If you go with fossil fuels, you will keep burning more and more every year until it is much worse than deforesting an area.
So reforesting can capture CO2 already released, but that only offsets fossil fuels for some period of time. Even if you cover the whole planet in forests, there is a finite amount of fossil fuels you can burn before it is negated. That is why eliminating fossil fuel use, and quickly, is far more important than protecting forests. Once you burn fossil fuel, you can’t recapture it into fossil fuel and would have to increase fores area permanently to compensate.
I think that this is the crux of the matter, and of course you’re right. The total amount of carbon stored in fossil fuels is (presumably, without searching for the numbers) much greater than the amount currently stored in living organisms, so there is a finite amount of fossil fuels that can be burnt before the carbon emissions exceed the capacity of forests/vegetation to capture it. Do you know what that “finite amount of fossil fuels” would be? From what I have seen, it is quite large, though humanity is rapidly approaching it. What’s needed is for the rate of emissions to be reduced below the rate of capture, and so a reduction in fossil fuel use is urgently needed, but I wouldn’t say that completely eliminating fossil fuel use is more important than protecting forests. All that’s needed in the long term is for carbon capture to at least equal carbon emissions. In the short term, the planet is already close enough to the “point of no return” that reforestation is necessary in order to bring down levels of carbon dioxide, regardless of how quickly fossil use ceases. It has to be both. Burning fossil fuels is not a sustainable way to meet the energy needs of 8 billion+ humans. Cutting down forests for biofuel is not a sustainable way to meet the energy needs of 8 billion+ humans. Deforestation for biofuel would be sustainable for a much larger population than would burning fossil fuels (due to the extremely slow renewal rate of fossil fuels), but we’re past that point. There’s not enough land. Either energy consumption needs to drastically decrease, or non-combustion sources of energy are needed.
I get the impression that we are essentially “on the same side” and just quibbling over details. You make an excellent case against fossil fuels! Looking at it in terms of the broader carbon cycle makes the necessity of ending fossil fuel use very obvious even ignoring any concerns about pollution, destructive extraction practices, or other harmful effects.