We need someone with experience <a href=" http://www.jgwilson.co.uk/nexium-information-leaflet.pdf#clothe ">nexium information leaflet</a> Previously, scientists has estimated that about 5 per cent of the total number of species is going extinct each decade, which would mean more than half would die out within 150 years. However, Professor Stork and his colleagues believe the true extinction rate is nearer to 1 per cent per decade – which means the rate of species description should outpace the rate of extinction.