It is currently Mon Nov 18, 2019 5:45 am


Post new topic Reply to topic  [ 1 post ] 
Author Message
PostPosted: Wed Nov 16, 2016 10:34 am 
Offline

Joined: Mon Jan 09, 2006 11:05 am
Posts: 5282
Location: Lancashire
The experts tell us that unless carbon dioxide emissions are reduced by 25% by the end of the next decade, the greenhouse runaway effect will likely kick in.
There are, as we know, a number of proposed ways to reduce/stabilise global warming. One way is carbon capture, which means pumping CO2 into the ground from its point of production. For the UK, carbon capture was put on hold when Chancellor Osbourne scrapped a £1billion carbon capture programme.
A second way to reduce CO2 emissions is to use bio-energy, including burning wood to produce electricity. There are two problems here. Firstly, the UK already imports wood pellets from the USA for some power stations. Unfortunately, the bulk carriers that bring the pellets here from across the Atlantic, burn up 5 tonnes or so of engine oil per mile. The second problem is that burning wood doesn't actually result in a net decrease in CO2. A tree consists almost entirely of CO2 ( allowing for the water in wood ). When a tree is burned it releases the CO2 back into the atmosphere, as also does a rotting tree.
Mirrors in space, beaming sunlight onto mirrors in deserts, is an alternative method for producing carbon-free electricity.
Releasing sulphate into the stratosphere to reflect sunlight back into space has been suggested as a way to cool the Earth. Finally, seeding clouds with misted water spray to thicken and brighten them, reflecting sunlight back into space, has been proposed.
Whichever methods are adopted, and if the scientific predictions are correct, there's little time left to implement them.

_________________
brian


Top
 Profile Send private message  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group