Consequence images
The problem with climate change and ethics is usually that we can not see direct consequences of our actions, causing people to be less motivating or even ignorant to change anything in their lifestyle.
So why don't we, just like with smoking, put images on products or services with the indirect consequences of the bad things contributing to that product. This could be in the form of a footprint, or
The only obstacles for this would be that it would first of all be very hard to get 1 standard measure, you also need to know what is goign to be measured,: - Is it only going to be everything that has an impact on climate, or also ethics culture and biodiversity etc., and don't these different things sometimes counteract each other etc.
Secondly, it is probably very hard to monitor or going to cost a bit.
But maybe it is worth to give it a go and expirimenting a little.