12

The short answer is that people do talk about it. It is commonly referred to as "land use change". In general, the carbon dioxide equivalent of the effects of land-use change is on the order of 10% of the total anthropogenic contribution to CO2 emissions. This may seem small, but it is important to realize that land-based plants are only a portion of the ...


7

There is no such thing as a single "natural" level of $CO_2$: In Earth's history, there have been levels much higher and much lower than currently, and they are all natural. What we should consider instead is what levels of $CO_2$ are compatible with the mild and stable climate that humanity has enjoyed for the last few millennia, or conversely, which ...


3

As Jan points out, there are many other factors in the oxygen balance, not just trees. But for a bit of fun, let us suppose that we burn all the trees on the planet. The global biomass of carbon is estimated as 47.4 PgC (it varies a bit according to season and inter-annual growth conditions). Of this we can estimate that the contribution from trees is about ...


2

Just by looking at a treeless region it would be difficult to know whether it was naturally treeless or whether the lack of trees was due to human actions. The history of the region would need to be known. In Scotland, due to the extent of glaciation during the last ice age some of the ground was scoured, leaving bare rock when the ice finally melted. With ...


2

Deforestation does impact climate change and rainfall patterns. A study in 2018 outlined some of the feedbacks, firstly the direct effect of releasing CO2. Changes in evapotranspiration from deforestation caused 33% of the observed increases in the temperature of the hottest days in regions with at least 15% deforestation. There can be a counter factor in ...


2

The mountains. The south has a steep relief, as well as the west. That means that there is much precipitation. The clouds throw every drop on these mountains, so almost nothing is left. The east is pretty low, so the remaining clouds (not much left) just fly over. In fact, deserts are generally not steep and they are usually behind the mountains. That is ...


1

How much forested land is currently protected from logging/deforestation? I doubt that could be answered with anything better than a rough guesstimate. We would first need to know how much land is OFFICIALLY/LEGALLY protected. Then we would have to subtract acreage to allow for illegal logging or general environmental destruction. There are also areas ...


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