Global cement production accounts for about 2 billion tonnes of CO2 every year – that’s 5% of all CO2 emissions and more than the entire aviation industry. Now a company has come up with a way of producing cement actually reduces carbon dioxide emissions.

Many of Europe’s travellers got very angry yesterday (and it looks like are going to be for a while yet) as their flights were grounded due to the enormous ash cloud caused by the eruption of Icelandic volcano Eyjafjallajoekull (extra marks shall be awarded for correct pronunciation).

Climate change has been a hot (pun unintended) topic in the news recently.  The latest UN climate talk opened on Friday, with the hope of reaching the global treaty that the Copenhagen talks in December failed to produce.