I’m greener than you are?

Wednesday, February 4th, 2009

There is a somewhat disturbing undercurrent in the carbon offsets arena.  Seems that trees and forests don’t rate as viable carbon offset methods.  Excuse me?

For those new to carbon offsets, it involves the valuation of activities which reduce greenhouse gasses which, when verified, are sold to individuals and companies who seek to offset their carbon footprint.

Carbon offsets range from capturing the methane emitted by the decomposition that occurs at landfills (methane is a 20X more harmful greenhouse gas than CO2) to wind farms (the theory that electricity created from wind reduces the need to have it created by, say, coal.)

TerraPass, a San Francisco-based offset company, doesn’t offer any forestry options for its customers seeking offsets.  One reason offered is that it takes too long to recognize the benefit, and they fund offsets that occur now.  Fair enough, if that’s your model.

But they go on to describe an inherent risk, in that eventually trees can die.  Others would argue that  reforestation provides the lowest cost means to achieve  carbon sequestration, and it can be accurately measured.

No one is debating the aesthetic benefit of forests [author smiles…].

Third party verification provides a valuable benefit to sellers and buyers of forestation project credits.  In addition to limiting the duration to perhaps 40 years, after which time the sequestration neutralizes as old trees die and new ones grow, percentages of the project can be set aside as a risk-recognized method for damage or destruction, such as in the case of fire.

A previous blog listed some calculations on carbon sequestration by trees, but Russell Simon, communications manager with Carbonfund.org, said it well when discussing the difference between avoiding greenhouse gas escape as with methane capture at landfills, and removing carbon from the atmosphere:  “Sequestration is the only kind of project out there that takes CO2 that’s already been released and does something with it.”

‘Say it well’ yourself by leaving a comment.

Tags: Carbon Dioxide, Carbon Sequestration, environment, green movement, landfill
Posted in Carbon Offsets, Certification, Forestation | 8 Comments »