>What are "our" options? We choose to buy suburban homes with large gardens. We choose to buy gas-guzzling trucks and SUVs. We choose to fly thousands of miles

>What are "our" options? We choose to buy suburban homes with large gardens. We choose to buy gas-guzzling trucks and SUVs. We choose to fly thousands of miles for a week-long holiday. We vote for municipal governments that choose low-density zoning laws. We vote for politicians that promise cheap gas and disparage public transit. We all have some responsibility to bear for this issue.