Everybody spending 8 more hours at home means so much more individual heating, whereas before, when you went into the office you'd turn the heating off.
Also as someone else pointed, working remote leads to leaving small apartments in the city to move into larger spaces (houses) in the suburbs. Then you would need to use a car more to meet people, get groceries etc. Cities are much more carbon efficient.
Everybody spending 8 more hours at home means so much more individual heating, whereas before, when you went into the office you'd turn the heating off.
Also as someone else pointed, working remote leads to leaving small apartments in the city to move into larger spaces (houses) in the suburbs. Then you would need to use a car more to meet people, get groceries etc. Cities are much more carbon efficient.