The band are in Jordan to perform two shows, from the album Everyday Life, being streamed live on YouTube.
But frontman Chris Martin, 42, told BBC News: "We're taking time to see how our tour can be actively beneficial."
He said of any future tour: "We would be disappointed if it's not carbon neutral.
"We've done a lot of big tours at this point. How do we turn it around so it's no so much taking as giving?"
The band's last big tour was for A Head Full Of Dreams, in 2016 and 2017.
Their new record will be released on Friday, with songs inspired by news reports about an Afghan gardener and a Nigerian hymn composer.