: As with the rest of the game, the branching paths here are brutal. Decisions made in Chapter 4 can lead to significantly different outcomes for major characters like Dr. Kelly and Reese, reinforcing the game's reputation for meaningful (and often heartbreaking) choices.

The cathode produces hydrogen gas ( H2cap H sub 2 ) via water electrolysis (

If carbon pricing or methane regulations are rolled back, the economic incentive for mitigation could weaken.