One of New Zealand’s leading climate scientist, Dr David Wratt, answers a series of questions about climate change in this new video series by the National Institute of Water and Atmospheric Research (NIWA).

Climate change is often described as the world’s most serious environmental issue. It is already having an impact in many areas of the globe. NIWA has put together a series of short videos explaining and discussing climate change and its effects in New Zealand.

Dr Wratt is speaking as emeritus scientist at NIWA and an Adjunct Professor in the Climate Change Research Institute at Victoria University. In the videos he is interviewed by NIWA intern Annie Hale, from Colorado College, USA.