Much is said about who should pay for the costs of dealing with climate change.

Our emissions problem is a nationwide one, not confined simply to rural methane. Is there a figure for the amount of CO2 breathed out by New Zealand's urban population and their pets each 24 hours, and is there data about the sheer volume of greenhouse gasses wafting to the sky from our urban cars and industries each week?

True, plans are unfolding which will address the motor fuel issue – eventually.

In the meantime, it seems fair that the cost of steps towards emissions reduction should be shared by both town and country.

M Whitwell, Judea.