Awkward questions about biodiversity | Letters

Academics and environmental campaigners from the Beyond Extinction Economics (BEE) network say challenging questions about confronting the risk to global biodiversity were left unanswered by a recent Guardian briefing articleDamian Carrington are to be congratulated on a wide-ranging and informative article on the urgency and scale of the current global threat to biodiversity and the Guardian (What is biodiversity and why does it matter to us?, theguardian.com, 12 March). However, we of the