Well done on getting the debate on civil engineers and the environment rekindled.
As Colin Sherwood said in his letter (NCE 3 February), we must go forward on this.
We will do it by focusing on our duty to provide sustainable infrastructure to meet societies' needs for transport, energy and the use and control of water.
We will make it sustainable by design.
We will understand what is sustainable by working with scientists to improve our understanding of, and our ability to predict, the impacts of civil engineering infrastructure on the environment. With a proper understanding we can devise and operate infrastructure to achieve the most sustainable outcome.
And if Colin could provide a reputable impartial reference that confirms his view that 'humanity is already destroying the planet faster than it can recover' we could ask the author to work with us to meet societies' needs while destroying the planet at the slowest possible rate.
This would prolong the life of the planet but, more importantly, it would prolong the lives of the millions of its inhabitants who, through our neglect, have been denied the infrastructure they need.
Rodney Bridle, 91B High Street, Amersham HP7 0DT