Hawaii has one of (if the not the) largest solar farms in the world — and they use sheep for weed removal. We definitely should be reforesting land, but land that is already pasture has a lot of potential for regenerative agricultural practices which greatly increase the prairie’s carbon-capture potential. Particularly if animals are incorporated intelligently. One study showed that the panels themselves can actually help improve pasture soil.
Sheep produce methane which is far more harmful per unit mass than co2. I'm guessing sheep (especially plural) are less efficient than a fossil-fuel trimmer (maybe not after accounting for the carbon used to manufacture the trimmer?), but you could probably replace it with an electric trimmer and be even better off. Reasoning about carbon is hard.
It’s definitely tricky to reason about carbon. One potential improvement is the incorporation of seaweed into a ruminant’s diet, which can reduce their emissions by a third. There’s also progress being made on breeding sheep and cows that emit far fewer greenhouse gases. But it’s important not to ignore that the animals themselves play a key role in improving the soil (with proper management), which can lead to the storage of tons of carbon annually.
