The University of Leicester is displaying physical representation of a tonne of carbon, with a so-called a 'Carbon Cube' in the centre of its main campus.

It is the first UK life-sized depiction of a tonne of carbon, which, at 559.48m3, is larger than the average house.
Willmott Dixon Construction's head of sustainable development, George Martin, explains that the idea is to show the sheer space that a tonne of carbon dioxide occupies at atmospheric pressure.
He says that his company teamed up with the university specifically to participate in the green project.
"Carbon reduction is a hot topic with the government at the moment, and is frequently talked about in the media, but how many people can say they really understand the true effect carbon has in modern society," he asks.
"The cube will enable people to gain a more realistic view of the enormity of carbon consumption across the UK and hopefully drive home the message that more must be done to reduce it," he adds.