scientists turn trees into carbon banks - carbon dioxide absorbent
Redwood forest in Northern California is carrying out an experiment: people are trying to turn trees into "carbon banks ".
"Our idea is to manage the forest, let the forest absorb more carbon dioxide from the atmosphere, and slow down global warming.
Carbon reserves will be a hot topic at next month's Copenhagen climate conference, especially if negotiators cannot agree on how to reduce emissions in industrialized countries.
Carbon reserves can reduce these emissions by paying poor countries to save forests and better manage them.
But to do so, climate scientists need to be climate accountants.
The amount of carbon inhaled and discharged by trees is strictly counted.
This is the California experiment.
Some of these accountants can be found in the Great River Forest in Mendocino County, where there are plenty of oak trees, Douglas fir and redwood trees.
The Environmental Protection Fund bought 16,000 acres of the forest and put it aside for experiments.
Take a walk along the muddy path with Chris Kelly of the fund, taking us through the thick bushes and small trees --
The kind of forest that appears after a lot of logging.
"It's like you just threw the seeds on the ground in the garden and then didn't come back to weed," Kelly said . ".
"As a result, you get a choking garden with thin carrots and immature fruits.
"But this is the type of forest that the fund depends on. . . literally.
"What we want to do is come in and thin the forest and let the bigger trees grow, and because of this thinning, they will grow bigger and faster," Kelly said.
Accounting is tricky.
If you cut down a tree, its carbon will eventually rise to the atmosphere.
Farmers must prove that their "weeding" will produce Net income --
This means that more carbon will be stored in the trees that are kept and grown, rather than released when the farmers weed.
Calculate the measurements that carbon bankers must do.
From the fallen tree to the big branches on the ground, there are many measurements.
When the wood finally rot, it emits carbon, which makes it a liability on the balance sheet.
But the big redwood tree is an asset, like a bank vault, where a lot of carbon is hidden every year.
Linknov is also a fund mathematician.
He kept a carbon balance sheet for the forest.
"The redwood tree is a bit amazing," says Golinkoff . ".
"They can grow for hundreds or even hundreds of years, and there is still significant growth in scale and growth.
"This makes them ideal trees for carbon banks. A typical 25-inch-
Mahogany in diameter can store about a ton of carbon.
"Carbon accounts for about 50% of the quality of most trees," says Golinkoff . ".
According to The Conservation Fund, its forests have absorbed an additional 350,000 tons of carbon in more than two years.
This is about the equivalent of removing 80,000 cars from the road in a year.
There are other benefits, says Golinkoff.
"By managing carbon, we don't harvest that much, the harvest will disrupt the soil, and the harvest will reduce the size of the trees, so in general, when we have larger trees and less interference, you will have a stream. . .
They keep cool. Fish like that.
"Sell carbon credits, but how much is it worth once you put carbon in the bank?
The fund is actually making money by selling carbon credits to people who are trying to "green" their image or want to offset their carbon footprint.
Every ton of carbon is worth mentioning.
The market is small now, mostly in California.
But it is growing and negotiators in Copenhagen next month want to do the same around the world.
Gary Gero operates a Climate Action Reserve that sets standards for carbon trading.
Once you limit your carbon emissions legally, carbon banks start to make sense, he says.
"Businesses in California say, 'We know you'll regulate this one day, so give us the ability to start reducing greenhouse gas emissions now and make sure we recognize these reductions.
Gero says it gives people with forests a new choice --
Either cut wood or grow carbon pools.
Or, as the fund is doing, there is one thing in both.