Sir Peter is chair of the International Network of Government Science Advice (INGSA) and president-elect of the International Science Council (ISC). From 2009-2018 he was first Chief Science Advisor to the Prime Minister of New Zealand. He is also Science Envoy for the New Zealand Ministry of Foreign Affairs and Trade and coordinates the secretariat of Small Advanced Economies Initiative. He has written and spoken extensively on science-policy and science-diplomacy and science-society interactions.
He has received the highest scientific and civilian honours in New Zealand and numerous international scientific awards. In 2016 he received the AAAS award in Science Diplomacy. He is a Fellow of the Royal Society of London and the Royal Society of New Zealand, a member of the National Academy of Medicine (USA) and a fellow of the Academy of Medical Sciences (UK).