There’s Plenty of Space for One Trillion More Trees
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Re: There’s Plenty of Space for One Trillion More Trees
#2Could satellite/drone imagery with computer vision could get an accurate count?
Re: There’s Plenty of Space for One Trillion More Trees
#3I don't understand the argument. We needed to know how many trees there are to know whether we physically have space available for more?
Re: There’s Plenty of Space for One Trillion More Trees
#4Could satellite/drone imagery with computer vision could get an accurate count?
Given half the trees are already gone, not sure how useful a more detailed count would offer.
Re: There’s Plenty of Space for One Trillion More Trees
#5I don't understand the argument. We needed to know how many trees there are to know whether we physically have space available for more?
Attempting to count the trees provided a better understanding of what types of trees growth where with what density, though I would agree it seems like "just go plant some trees" might get more done.
Re: There’s Plenty of Space for One Trillion More Trees
#6Look here: https://www.google.com.au/maps/@-33.0362291,118.4896355,5465...
Can you figure out where there used to be trees ? That's now wheat farms mostly. Due to the tree removal salination has ruined 2 million hectares of what is now essential wasteland. https://en.wikipedia.org/wiki/Salinity_in_Australia
Re: There’s Plenty of Space for One Trillion More Trees
#7Interestingly, planting 1 trillion trees all at once would decrease the albedo of the earth (https://en.wikipedia.org/wiki/Albedo), increasing warming in the short term. I wonder how long the trees would have to exist before the scrubbing effect on carbon dioxide would outweigh the albedo change?
Re: There’s Plenty of Space for One Trillion More Trees
#8I don't understand the argument. We needed to know how many trees there are to know whether we physically have space available for more?
We need to know the density of trees in various environments to understand how many more we can plant. And when you have that, you also know how many trees already exist.
It's also useful to know how many trees have been lost to development, which is closely related to how many currently exist. And all of that is based on knowledge of tree density in various environments.
Re: There’s Plenty of Space for One Trillion More Trees
#9Interestingly, planting 1 trillion trees all at once would decrease the albedo of the earth ( https://en.wikipedia.org/wiki/Albedo ), increasing warming in the short term. I wonder how long the trees would have to exist before the scrubbing effect on carbon dioxide would outweigh the albedo change?
Depends on what the trees are shading? They couldn't be much worse than concrete I imagine...
Re: There’s Plenty of Space for One Trillion More Trees
#10Interestingly, planting 1 trillion trees all at once would decrease the albedo of the earth ( https://en.wikipedia.org/wiki/Albedo ), increasing warming in the short term. I wonder how long the trees would have to exist before the scrubbing effect on carbon dioxide would outweigh the albedo change?
Depends on what the trees are shading? They couldn't be much worse than concrete I imagine...
https://en.wikipedia.org/wiki/Albedo#Terrestrial_albedo
Albedo of a conifer forest is 0.08 to 0.15, albedo of new concrete is 0.55.
The climate change effects of reforestation are addressed later on in the same article: https://en.wikipedia.org/wiki/Albedo#Trees