Hurricane Katrina now supposedly a *cause* of global warming

Excerpt from this link:

As if Hurricane Katrina's wind and water hadn't inflicted enough damage, a group of researchers led by a Tulane University biologist has found that the monster storm may well have accelerated global warming.

As Katrina roared through coastal forests in August 2005, it destroyed thousands of trees. As those trees decompose, the carbon they release will be enough to offset a year's worth of new tree growth elsewhere in the United States, said Jeffrey Chambers, an assistant professor of ecology and evolutionary biology. The team's report has been published in the peer-reviewed journal Science.

Evidently the solution is to plant more immortal trees, because left undisturbed, ordinary trees have a distinct tendency to eventually die and decompose?