Lately, I have been thinking about biogas and the impact leaks might have on its effect on the climate. Biogas is mostly methane, and we know that methane has a much higher global warming potential than CO2. There will inevitably be leaks from biogas production plants, vehicles running on biogas, and other infrastructure.

In Norway, sorting of food waste has been introduced in many areas. This food waste is taken to a treatment facility where biogas is produced, and the leftovers from the biogas production are used as bio-fertiliser. The biogas is used to power buses and dustcarts in and around Oslo. The climate effect is then positive, since you are using a resource that would otherwise be wasted, potentially turning into methane at a landfill.

My question is: how large would the leaks have to be to counteract the positive effects?

Lately, I have been thinking about biogas and the impact leaks might have on climate. Biogas is mostly methane, and we know that methane has a much higher global warming potential than $\sf{CO_2}$. There will inevitably be leaks from biogas production plants, vehicles running on biogas, and other infrastructure.

In Norway, sorting of food waste has been introduced in many areas. This food waste is taken to a treatment facility where biogas is produced, and the leftovers from the biogas production are used as bio-fertiliser. The biogas is used to power buses and dustcarts in and around Oslo. The climate effect is then positive, since you are using a resource that would otherwise be wasted, potentially turning into methane at a landfill.

My question is: how large would the leaks have to be to counteract the positive effects?