Charting a course in unfamiliar territory.
Campaign groups say US president could use bipartisan summit to launch a national climate strategy.
Think natural gas will get us from coal to renewables? Think again.
Forecast temperatures are so extreme that the Bureau of Meteorology has had to add a new colour to its scale. It is a sign of things to come.
The likely defense secretary nominee has been confused about climate change… but concerned about it, too.