0002番組の途中ですがアフィサイトへの転載は禁止です (オッペケ Sr1b-s2C6)2021/12/10(金) 11:24:02.48ID:+K6RzYVlr
Road construction uses up large amounts of raw materials that require a lot of energy to produce, including asphalt and cement. This energy means lots of greenhouse gas emissions
According to this study for a 4-lane road constructed in China, a 20 km length of road that is 28 m wide involved the release of 52.26 million kg of CO2. That's 2,613 kg per meter length of road which would make 5.2 t for 2m of road. Specifics of the project are given in the second quote below taken from the Description of the Project section of the paper.
#Ma et al., Greenhouse Gas Emissions from Asphalt Pavement Construction: A Case Study in China, 2016
0003番組の途中ですがアフィサイトへの転載は禁止です (ワッチョイW e789-z5fu)2021/12/10(金) 11:48:47.20ID:cJAwlk9X0
?
0004番組の途中ですがアフィサイトへの転載は禁止です (アウアウイー Sa1b-gtpG)2021/12/10(金) 11:56:27.95ID:C4WcW4OVa
道路が作られてからco2を排出するんか
EV用モーターやバッテリーの原材料の
レアアースやレアメタルの採掘、製錬、製造も含めているのか?