Half the wetlands in Europe lost in past 300 years, researchers calculate

Assessment shows 20% global loss since 1700 - far less than thought - but Europe, US and China bear the brunt

Half the wetlands in Europe, continental US and China have been destroyed in the past 300 years, with some areas - including the UK, Ireland and Germany - losing more than 75%, new research shows. Globally, an area the size of India has disappeared.

Until now, it wasn't known how many wetlands were left - previous estimates suggested between 28% and 87% had been destroyed since 1700. For the first time, researchers combined global historical records with maps of today's wetlands to create a more accurate global picture, and found an estimated 20% of all wetlands destroyed. Europe, however, was the worst affected area, with Ireland losing more than 90% of its wetlands, Germany, Lithuania and Hungary more than 80% and the UK, the Netherlands and Italy more than 75%.