更新於: 14 Dec 2020
在一個擁有超過77億人口的世界中，一個人的行動有多重要？ 我們減少碳足蹟的個人行動是否真的能在全球範圍內有所作為？ 在本章中，我們將探討我們的個人行動在全球應對氣候變化斗爭中到達有多重要。
73% of global greenhouse gas emissions come from energy (electricity, fuels, heating, etc.), which is mostly produced by fossil fuel companies. Indeed, around 85% of our energy comes from the burning of fossil fuels .
However, energy production is driven by consumer demand as it is required to supply the goods and services that we rely on. Therefore, we also must bear some of the responsibility for emissions from energy production.
For many emissions sources, there are currently no practical alternatives. For example, there is currently no practical way to fuel aeroplanes or ships without fossil fuels. Some companies have been exploring alternatives like algae-based biofuels for many years . However, until these sustainable alternatives can be made cheaper than fossil fuels, through cheaper production methods or government subsidies, it is unlikely that they will be widely adopted by consumers.