E-Mail IMAGE: Diagram of how aluminum may facilitate the uptake of iron and the utilization of dissolved organic phosphorus by marine phytoplankton view more Credit: ZHOU Linbin Reducing net greenhouse gas emissions to zero as soon as possible and achieving "carbon neutrality" is the key to addressing global warming and climate change. The ocean is the largest active carbon pool on the planet, with huge potential to help achieve negative emissions by serving as a carbon sink. Recently, researchers found that adding a small amount of aluminum to achieve concentrations in the 10x nanomolar (nM) range can increase the net fixation of CO