The social cost of carbon – which calculates the impact of carbon emissions – plays a key role in US climate policy.
The idea of clean coal has been around for 40 years, but remains a pipe dream.
It seems Trump and his appointees already accept more global warming science than they are prepared to let on.
If you thought the climate debate has been ugly, you haven't seen anything yet. In 2017 Australia will review its climate policies, and the process is not off to a good start.
In the absence of strong federal action on climate change, many states have developed their own climate and energy policies.
Ten years ago on Saturday Prime Minister John Howard announced the Coalition government would investigate an emissions trading scheme to reduce greenhouse gas emissions.
Many thousands, perhaps millions, of lives depend on the direction of Trump's climate policies.
Countries have started announcing strategies to cut greenhouse gases over the next 35 years.
Recent global climate talks at COP22 saw a growing role for businesses, NGOs and the state of California – a promising sign for action on climate change in the face of U.S. inaction.
All is not lost for the climate with the election of Donald Trump.
Some areas expecting big environmental changes already have large, vulnerable populations.
Memo To Marrakech: If the U.S. drops the mantle of global leadership on climate, here are the rest of the world's options on how to react.
November 9 will likely become the day that the Paris Agreement died, but not when the goal of limiting warming to 2℃ slipped out of reach.
Many models used by policy-makers suggest we'll have to remove CO2 from the atmosphere - but if we can't, we have to get much more serious about cutting emissions.
Wind and solar farms are great. But we need to reduce energy demand and start taking carbon out of the atmosphere.
More wind farms, electric cars and efficient lightbulbs, of course. But also lower taxes.
Malcolm Turnbull has said coal will be important for "many decades to come" – joining a long line of prime ministers who talked big on climate policy but found themselves talking up fossil fuels.
Australia's lax attitudes to vehicle emissions has been overlooked in Ford's exit.
Canadian PM Justin Trudeau has decided to leave climate policy to the provinces, while forcing them to act.
A global deal on airline emissions leaves a number of loopholes.