We don't do nothing about it though. Europe is getting more efficient and technologically advanced. 10 years ago I had 60 Watt lightbulbs hanging in every room, now it's 7 Watt LEDs. Modern cars like a BMW 520d can do 4.5 liters/100 km (52 miles per gallon) despite 190 bhp and 2 tons (proper car where you can take the wife, your 2 kids and the dog to holidays). 15 years ago these regions were celebrated like a revolution (3 Liter Lupo, which wasn't even a proper car). All my electronic devices are A+ upwards.
Emissions are decreasing every year in modern Europe. The whole of Europe is responsible for 9 % (and decreasing) of all CO2 emissions in the world. If people want to protest against wastefulness they should start doing so in the US, China, India.
It is not "whataboutism" (terrible word to hide hypocrisy). If the door of your car is falling off you don't start discussing polish wax and how to remove the scratch on the bonett in the best way possible.
Greta is already learning that no one in the US cares. How many did she gather infront of the White House again? 200 (half of them media people and curious bystanders)? And why would they? They don't do anything about guns even with hundreds of mass shootings every year. What do they care about climate?
Mayweather vs Pacquiao visitors parking their "vehicles":
I'm sorry but when this is the state of the world I'm not going to be more papist than the pope and feel "flight shame" or stop driving or stop eating meat.