But one effect of that absorption is that it turns the ocean water more acidic.

CNN: Ice shelf collapse: What does it mean?

The development of biofertilization techniques would also increase water use efficiency by promoting higher nutrient absorption and crop growth rates.

UNESCO: World Water Assessment Programme (WWAP)

The porous version exhibited high "selective absorption and adsorption" - preferentially picking up organic pollutants and dyes out of water.

BBC: 'White graphene' soaks up pollutants and can be re-used