Category Archives: climate change

Climate change, happiness and economic growth

Humanity has gone beyond the ‘safe operating space’ of the planet, and the problems we face – climate change, biodiversity loss, water shortages – are all related to the use of materials, fossil fuels and biomass by the world’s economies. … Continue reading

Posted in Advances in technology, climate change, Politics, Social issues, Sustainability | Tagged , , , , | 1 Comment

Ethanol from willow trees – is it worth it?

The current obsession with ‘carbon neutral’ – in many ways a very good one – has meant that people are very keen to label things carbon neutral when in fact they are nothing of the sort. Biofuels is a prime … Continue reading

Posted in Biofuels, climate change | 6 Comments

Antarctica shrinks – new estimates from satellite data

Substantial loss of ice-sheet mass has been confirmed for Greenland and West Antarctica, thanks to an innovative approach to data interpretation. The satellite data also showed that the contribution of the receding ice sheets to sea-level rise has accelerated over … Continue reading

Posted in Advances in technology, climate change | 4 Comments

Tree growth declines in a warmer climate

In theory, rising CO2 levels could cause plant growth to increase. Higher levels of CO2 can stimulate growth, as can the associated warmer temperatures. This would provide a welcome negative feedback – some of the manmade CO2 increase would be … Continue reading

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Can science feed us?

Predictions suggest the world’s population will peak in 40 years time at 9 billion, and to feed them all we need a 40% increase in food production. In a recent review, Valentí Rull from the Botanical Institute of Barcelona questioned whether … Continue reading

Posted in Food security, Politics, Sustainability | Tagged | 3 Comments