We cannot go any further without climate protection.

The political guidelines for reducing greenhouse gas emissions will affect new buildings and, above all, existing buildings even more than before and make them more expensive in the coming years and decades.

Nothing is impossible to save the climate: Greening facades, insulating walls, planting trees, expanding oil heating and more renovation, more wood, more solar systems.

The Federal Government and the European Union are already fiercely fighting for the measures.

This is likely to be fought out even more strongly after the federal election.

For the goal of climate neutrality in 2045 and previous interim goals, federal and state politicians are too often tinkering around in the small and small when they try to prescribe all the details.

Only soothsayers know which technology in buildings will be most promising in one, two or three decades.

Emissions trading is best used to reduce CO2 emissions where it is associated with the lowest expenditure.

But this path is not taken enough.

If the European emissions trading system connects the entire economy and also the buildings, that would be groundbreaking.

Otherwise the well-intentioned plans will only scratch the green facade.