As a scientist investigating climate change, I'm embarrassed by the high carbon footprint I have when I travel to, and work in, Antarctica. Researchers based in the UK regularly take four or five flights to reach the continent and the stations we visit rely on electricity from fossil fuels. Our food is shipped in and our waste is returned by ship to South Africa, South America or New Zealand. When we venture further afield for research and set up a temporary camp, a portable generator is flown in with us, along with our snowmobiles.