Why won’t reforestation have as large an impact as other sustainable alternatives?

Question

This topic really surged after the #TeamTrees movement, but has fallen off pretty significantly. I’ve heard a lot about how reforestation just doesn’t have the carbon capture capability required for it to be sustainable in the long run, but I would think that enough trees would offset at least SOME greenhouse emissions.

In: Planetary Science

Answer 1

The oceans have been steadily rising in temperatures and they have the most impact on carbon emissions absorption. So not only are the oceans slowly becoming less effective at absorbing it, they also can release carbon emmions themselves.

Underwater heatwaves
In 2010–2011, an underwater heatwave killed large amounts of seagrass off the coast of northwestern Australia, triggering a significant release of CO2.