![London, UK, 28 Oct 2021 Balloon holding one tonne of CO2 outside the National Gallery in Trafalgar Square. Part of the entertainment put on in Trafalgar Square by the Mayor of London London, UK, 28 Oct 2021 Balloon holding one tonne of CO2 outside the National Gallery in Trafalgar Square. Part of the entertainment put on in Trafalgar Square by the Mayor of London](https://c8.alamy.com/comp/2H3F1AH/london-uk-28-oct-2021-balloon-holding-one-tonne-of-co2-outside-the-national-gallery-in-trafalgar-square-part-of-the-entertainment-put-on-in-trafalgar-square-by-the-mayor-of-london-for-the-school-holidays-credit-johnny-armsteadalamy-live-news-2H3F1AH.jpg)
London, UK, 28 Oct 2021 Balloon holding one tonne of CO2 outside the National Gallery in Trafalgar Square. Part of the entertainment put on in Trafalgar Square by the Mayor of London
![Figure 1.1 from Energy Efficient Built Environment No . 2 , June 2018 Life cycle assessment of villas made by Fiskarhedenvillan , comparison between wood and brick facade | Semantic Scholar Figure 1.1 from Energy Efficient Built Environment No . 2 , June 2018 Life cycle assessment of villas made by Fiskarhedenvillan , comparison between wood and brick facade | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/6bc49b643d33c9e48382e50e3ef5ff39a76a069d/7-Figure1.1-1.png)
Figure 1.1 from Energy Efficient Built Environment No . 2 , June 2018 Life cycle assessment of villas made by Fiskarhedenvillan , comparison between wood and brick facade | Semantic Scholar
![The New campaign 1 Ton CO2 Less. Every person should use this amount less in private life. | International Club Copenhagen The New campaign 1 Ton CO2 Less. Every person should use this amount less in private life. | International Club Copenhagen](http://4.bp.blogspot.com/_IxVeuC8igyI/RiuCs83jvgI/AAAAAAAAAQs/t8wZeGy9cSg/w1200-h630-p-k-no-nu/!+1+Ton+Mindre+++CO2+1.jpg)