12 votes
Accepted

Is it possible that a reduction in vegetation is a cause of global warming?

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% ...
user avatar
  • 12.7k
7 votes
Accepted

What are the ranges of natural (or pre-industrial era) levels of CO2 in the atmosphere in ppm and tons?

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 ...
user avatar
3 votes
Accepted

What rate of deforestation would be needed until we run out of oxygen?

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 ...
user avatar
2 votes

Is there a way to tell whether land is cleared from forest, or naturally bare?

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 ...
user avatar
  • 20.7k
2 votes

Does deforestation increase global temperatures or just local temperatures?

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 ...
user avatar
  • 1,606
2 votes

Why are the south, the west and the north of the Caspian sea lush but its east completely dry?

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 ...
user avatar
  • 618

Only top scored, non community-wiki answers of a minimum length are eligible