410 search results

The new politics of climate change
Nature & Environment

The new politics of climate change

...carbon targets but engage more comprehensively with the need for deep adaptation as highlighted by Jem Bendell and his work in this area. With other issues such as Brexit and re-election garnering all the attention in parliament, it is likely that there will be continued delays in addressing climate change. Over the next 12 years these delays will become more and more...
DIY: Taking the Caffeine Out of Tea
Science, Maths & Technology

DIY: Taking the Caffeine Out of Tea

...carbon dioxide. Although it’s a gas at normal temperatures and pressures, solid carbon dioxide won’t pass through a liquid stage as it warms up at atmospheric pressure. This is why it’s sometimes called ‘dry ice’. Decaffeinated coffee Caffeine can be removed from coffee beans, before they’re roasted, by a process called solvent extraction. Water is first added...
Rock Clocks
Science, Maths & Technology

Rock Clocks

...carbon to give us absolute ages. Carbon occurs in organic remains like bone and wood, which can also be fossilized in rocks. ‘Carbon dating’ is therefore useful for dating events in the ice age, like the length of glacial periods and the date of the retreat of the last ice sheet covering the UK which was 13,000 years ago. We can even date the actual ice using the...
Article 10 mins
The drive to sustainability in Higher Education
Nature & Environment

The drive to sustainability in Higher Education

...carbon emissions (let alone other potential environmental impacts). A complex question! Some of the earliest research was pioneered by The Open University with the first major quantitative study, the ‘Factor 10 Visions’ study ‘Towards Sustainable HE’ (Roy et al. 2005; Roy et al. 2008) followed by the Jisc-funded SusTEACH research and development project –...
Safer battery could spark investment in renewables
Nature & Environment

Safer battery could spark investment in renewables

...carbon-based molecules called quinines for the negative electrolyte component of the battery. They had started their experiments with bromine-based electrolyte for the positive ions, but bromine is toxic and volatile. So they replaced it with a non-toxic, non-corrosive ion called ferrocyanide. “It sounds bad because it has the word cyanide in it,” Dr Marshak says....
Lighting the Industrial Revolution
History & The Arts

Lighting the Industrial Revolution

...carbon electrodes a short distance apart, a continuous spark would jump across the gap and provide illumination. However, a high voltage is needed and the carbon is continually consumed so the rods must be pushed into the arc at a steady rate. It was Davy who then went on to apply the pile of batteries to decompose various molten compounds, and so discover many new...
Sustainable Scotland
Nature & Environment

Sustainable Scotland

...footprinting, globalisation, recycling, food production, fishing, waste heat, nature and culture. This course will appeal to anyone interested in learning more about a sustainable future, as well as those who are interested in contemporary Scottish society. Understanding what is meant by the terms 'sustainability' and 'sustainable development' can be the first hurdle....
Level 1: Introductory 5 hrs
App zeros in on loss of equatorial glaciers
Nature & Environment

App zeros in on loss of equatorial glaciers

...carbon. But glaciers are a proxy for carbon, because they’re tangible.” He believes that too much of the environmental movement spends its time talking to the converted. “People are too busy for statistics and hockey stick curves, andpolar change is hard to represent,” he says. “You can’t see or smell or taste carbon. But glaciers are a proxy for carbon,...