ground basalt rock,UPSC PRELIMS 2023 – The Core IAS

ground basalt rock,UPSC PRELIMS 2023

Consider the following activities:

  1. Spreading finely ground basalt rock on farmlands extensively
  2. Increasing the alkalinity of oceans by adding lime
  3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters

How many of the above activities are often considered and discussed for carbon capture and sequestration?

  1. Only one
  2. Only two
  3. All three
  4. None


Basalt is the best rock for capturing CO2, and many mines already produce dust as a byproduct, so stockpiles already exist