Some ideas
-Which consumer product companies still use a lot of plastic packaging vs those already use bio-degradable packaging?
-Which heavy-industry manufacturing companies use coal or diesel as the main source of energy in their factories vs those use renewable energy source?
-Any company forbid their executives to fly excessively whether in private jet or business/first class? How many miles per year they travel ? It's simply not environmentally friendly when video conferencing should be effective in 90% of the cases?