The world's most authoritative climate scientist warns that Australia and the rest of the world should act now and eliminate coal within 22 years to save the Great Barrier Reef and other fragile ecosystems. And the largest organism in the world (no it's not a whale) has problems in the state of Utah.
ABC online environment reporter Nick Kilvert discusses this year's greatest environmental stories with science editor Jonathan Webb.
The IPCC issues expensive climate warning, says coal must go to save the Great Barrier Reef
Under IPCC forecasts, babies are born in day 22 when warming strikes 1.5 C. What will life be like?
The Pando Aspen clone or the compassionate giant, the world's largest organism, coincides
I stress you stress how we can stress less
Lila Landowski, University of Tasmania