Thread: London pollution monitoring
View Single Post
  #19   Report Post  
Old May 12th 19, 09:26 PM posted to uk.transport.london
Optimist[_3_] Optimist[_3_] is offline
external usenet poster
  
First recorded activity at LondonBanter: May 2019
Posts: 1
Default London pollution monitoring
On Sun, 12 May 2019 09:36:12 +0000 (UTC), wrote:

[snipped]

CO2 is the important pollutant, all the others are irrelevent. If all traffic
stopped now the particulates and NOx would be gone in a day. The CO2 will still
be around for thousands of years to come.

CO2 is a greenhouse gas, but far less potent in that respect than water vapour - but no-one suggests
trying to reduce emissions of water vapour! Neither gas is a pollutant, they are both essential for
photosynthesis without which all life would cease. Moreover, horticulturists deliberately increase
atmospheric CO2 concentrations in greenhouses and polytunnels to boost crop yields.

Reply With QuoteReply With Quote