eco-brat
A person or group of people who question someone's not eco-friendly possessions. Usually argumentative and rhetorical. Eco-brat usually doesn't understand other persons reasoning for such possession.
Ted was such an eco-brat about the Toyota Tundra the 7' person owns because he fits in it.
Eco-brat
A child who scolds adults for their less than perfect environmental behavior and attitudes
The eco-brat was given thirty minutes to scold the Senate about their plastic straw usage.