Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Gas and hot air


Mark Whitby need not have wrestled with his conscience over burning tree prunings (NCE 9 November). If they had been shredded and spread on his garden, bacterial action would have caused them to decay, releasing their carbon in the form of CO 2just as surely as if they had been burned.

If any had decayed in the absence of oxygen, much of its carbon would have been released as methane, which is alleged to be 20 times worse than CO 2with regards to global warming. Keep the home fires burning!

Roger Evans.

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.