The News story ‘Drug-pollution law all washed up’ (Nature 491, 503–504; 2012) incorrectly said that Axel Singhofen is a Member of the European Parliament (MEP). In fact, he is an adviser to Green MEPs who sit on the environment committee.

The World View ‘Science should be ready to jump off ‘the cliff’’ (Nature 491, 639; 2012) stated that the United States would raise only $2.2 billion in taxes this year. In fact, it will raise $2.2 trillion.