We might never again see CO2 levels drop below 400ppm
20 May 2016
Just three years ago this month, the carbon dioxide monitoring station atop Hawaii's Mauna Loa reached a significant milestone: the first measurement of CO2 concentrations that exceeded the benchmark of 400 parts per million. Now, they may never again dip below it. | Read more
500 Australian businesses back 75% climate target
Today 10:46am
Atlassian, Canva and Fortescue are among a coalition of more than 500 businesses operating in Australia that are backing a 75% emissions reduction target for 2030, which modelling from Deloitte found was technically achievable.
China's carbon market to introduce absolute emissions caps from 2027
Today 10:46am
China will tighten its carbon trading market by introducing absolute emissions caps in some industries for the first time starting by 2027.
Two energy paths: China locks in renewables, U.S. clings to coal
Today 10:46am
China’s clean energy build out is about more than panels and wind turbines. It includes new transmission lines, storage, grid upgrades and planning that prevents waste.
Amazon nations pledge support for Brazil's COP30 rainforest fund
Today 10:46am
The fund will be backed by an initial, one-time $25-billion contribution from donor nations, along with $100 billion in private funds.
WHO warns of risks of extreme heat in the workplace
Today 10:46am
Workers worldwide need better protection from extreme heat as climate change causes more frequent heatwaves – that's the conclusion of a new report from the World Health Organization and the World Meteorological Organization.
Ørsted shares at all-time low after Trump halts work on US windfarm
Today 10:46am
Shares drop by 17% after stop-work order on $1.5bn project off Rhode Island, which was 80% complete.
No room for the timid: setting Australia’s 2035 emissions target is a daring tightrope act
Tue 26 Aug 2025
Any week now, Australia will set its 2035 emissions target. It must signal the nation’s strong ambition on climate action, to drive policy and investment. And it must avoid being seen as either unrealistic or too costly.
Emerging economies turn to Asian reactors for new wave of nuclear power
Tue 26 Aug 2025
China, Korea and Russia move ahead of the West in the race to sell reactors overseas, as developing states back nuclear energy in a “new era of growth".
What's the carbon footprint of using ChatGPT or Gemini?
Tue 26 Aug 2025
A new study from Google suggests its Gemini LLM uses around 0.24 Wh per text query. That's the same energy as using a microwave for one second.
Ocean-based carbon storage ramps up, bringing investment and concern
Tue 26 Aug 2025
Capturing carbon to ship or funnel it offshore for storage in depleted marine oil and gas wells is gaining momentum as a proposed climate solution, even as it faces criticism.
