Gerard Wynn analyses energy and climate policy, as an advisor to business and environmental groups. He was formerly a reporter and analyst with Reuters news agency, and has a PhD in environmental economics.
What you need to know about the UN climate talks ahead of Lima
Despite the recent China-US climate pledge some hard choices and compromises will be needed before a wide-ranging deal can be agreed at the UN summit in Paris in 2015
EU leaders take important step on climate change, but will it be enough?
The European Union has made strong commitments to reduce emissions, but could have been more ambitious on renewable energy, says climate and energy analyst Gerard Wynn