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首页 » 人文地理 话题探讨 » 译文:在家工作或网上购物都会增加碳排放量


十一月 12, 2010





工程与科技协会的这项报告着眼于研究那些看上去绿色环保行为的“回弹效应”。回弹效应是指某些政策或行为原本意在节能减排,却无意识地导致其他方面的能源消耗或者甚至是弊大于利。(更多回弹效应资料请查阅 维基百科相关说明

这项报告的提出者Phil Blythe是纽卡斯尔大学智能运输系统的教授、工程与科技协会交通运输部的主席。他说,我们经常听说在家工作能如何如何保护环境,然而,通过仔细的审查会发现节能的效益是边际化而且有限的。



Phil Blythe教授说:“我们的研究报告给决策者们提供了两个重要的信息。第一,天气变化对我们的星球是个实实在在的威胁,但是我们不能知难而退,甚至用“回弹效应”当成无所作为的借口。”


原文(Via: sciencedaily.com):

Shopping on the Internet or working from home could be increasing carbon emissions rather than helping to reduce them, a new report claims. The research reveals that people who shop online must order more than 25 items otherwise the impact on the environment is likely to be worse than traditional shopping.

It also highlights that working from home can increase home energy use by as much as 30 per cent, and can lead to people moving further from the workplace, stretching urban sprawl and increasing pollution.

The Institution of Engineering and Technology (IET) report looks at the ‘rebound’ effects of activities that are commonly thought to be green. Rebound effects are the unintended consequences of policies that are designed to reduce emissions, but on closer analysis can move the emission’s production elsewhere or lessen the positive impact.

Professor Phil Blythe, Chair of the IET Transport Policy Panel and Professor of Intelligent Transport Systems at Newcastle University, which produced the report, said: "We hear a lot about the environmental benefits achieved as a result of working from home. However, on closer inspection it does appear that any environmental benefits are marginal."

The report highlights that buying goods online can provide carbon savings, but only if the conditions are right. The study found that environmental savings can be achieved if online shopping replaces 3.5 traditional shopping trips, or if 25 orders are delivered at the same time, or, if the distance travelled to where the purchase is made is more than 50km.

Shopping online does not offer net environmental benefits unless these criteria are met. The report also highlights that the top 20 per cent of British households spend almost nine times as much on transport costs (such as air travel) as the bottom 20 per cent.

Professor Phil Blythe says: "Our report highlights two important messages for policy makers. Firstly, climate change is a real threat to our planet, so we must not get overwhelmed by the task and use rebound effects as an excuse not to act.

"Secondly, policy makers must do their homework to ensure that rebound effects do not negate the positive benefits of their policy initiatives and simply move carbon emissions from one sector to another."

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