"The biggest threat to the environment is that we believe somebody else is doing to do something about it," we were told during our trip to Antartica.
In part five of HuffPost's documentary End Of The Earth, we ask if it's too late for individuals to make a difference to the changing climate.
We hear from businesses, politicians and ordinary people from all over the world about potential solutions available to us.
SUBSCRIBE AND FOLLOW GREEN
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements. Learn more
Stephen Hawking offers some radical options and reporter Lucy Sherriff concludes the documentary with the lessons she has taken away from her time in the world's most inhospitable place.