water plant
A study of arctic climatology reported that azolla may have had a
significant role in reversing a greenhouse effect that occurred 55
million years ago that caused the region around the north pole to turn
into a hot tropical environment. This research conducted by the
Institute of Environmental Biology at Utrecht University claims that
large dense patches of azolla growing around freshwater lakes formed
by the climate change eventually consumed enough carbon dioxide for
the greenhouse effect to reverse. "wikipedia"
Other plants grasses
Microbes
terra preta, soil that grows, mostly charcoal, under study.

--- In Carbon_Net@yahoogroups.com, "Diane B." <tigerking2@...> wrote:
>
> Does anyone know of a source of info about which trees and other
plants
> absorb the most carbon? Or of anyone working on this? Also, are
there
> microbes that absorb more carbon than others? I am curious about
this.
>
> Also, if the climate begins to warm, won't we need to plant
different
> trees to match? Are there quickly growing trees that could be used?
>
> I am thinking in terms of methods to absorb the carbon already in
the
> atmosphere, which will take decades to dissipate if left on it's
own.
> Hope someone else here has thoughts along this line.
>
> Diane
> Minnesota
>