We see that in Bangladesh. And in Australia. New research on carbon footprints across the socio-economic spectrum here, reveals that:
At a relatively low carbon price of $25 a tonne of greenhouse pollution, poor families around Australia would be paying about $558 a year more on their bills, while the wealthiest households would pay around $1446 extra.
But once those extra costs are adjusted to take into consideration income levels, as a proportion of their total spending, poor people could pay almost seven times more than the rich.
The analysis was conducted by the Melbourne-based National Institute of Economic and Industry Research.
The last word goes to the executive director of the Brotherhood of St Laurence, Tony Nicholson, who commissioned the analysis.
"This is a great opportunity, because if we seriously address climate change we can also do a lot to address entrenched disadvantage," Mr Nicholson said.
"For instance, we're advocating a national rental incentive scheme for landlords to make private rental properties more energy efficient, because we know many disadvantaged people have high energy bills because their homes aren't properly insulated.
"Australia has a national roads strategy; why don't we have a national public transport policy? More disadvantaged people tend to have older cars that consume a lot of fuel, and many live on the outskirts of cities and in country towns. So by improving public transport, you address both problems at once."