Tim Hollo is executive director of The Green Institute. An environmentalist, political adviser and musician, he is also founder and director of Green Music Australia, former communications director for Australian Greens Leader Christine Milne, former staff member and board member with Greenpeace, and has worked for 350.org and others. He has performed around the world from the Sydney Opera House to Carnegie Hall with his band, FourPlay String Quartet, and his writing has been published in The Guardian, Fairfax, ABC and Crikey among others.