Of course companies will be against it.
Not sure why climate activists would want people to suffer.
Some because they think it'll make people more aware of the problem and create more pressure to act, others because they think suffering is a virtue, people deserve it for what they have done to earth, and similar nonsense positions.
Seen it far too often unfortunately.
And in some cities they got air conditioning banned or de-facto banned (made so expensive with additional hurdles that it's unaffordable for most, ironically often leading to people using extremely inefficient hose-out-the-window monobloc units that you can buy without asking anyone for permission).