Current Affairs Question - 25 June 2021

National Environmental Pollution, Degradation & Climate Change

Hydrogen Production

Consider the following hydrogen production options:

  1. Blue hydrogen is made from CH4 where CO2 is captured and stored.
  2. Green Hydrogen is made from renewable energy and no CO2 is emitted.
  3. Brown Hydrogen is made from coal where CO2 is emitted to the atmosphere.
  4. Grey hydrogen is made from CH4 and CO2 is captured and liquefied.

Which of the above statements are correct?

1, 2 and 3 only
1, 2 and 4 only
2, 3 and 4 only
All are correct