Atmospheric carbon dioxide measurements at Tasmania’s Cape Grim and Antarctica’s Casy Station have now officially passed 400 parts per million and are likely to stay above that for decades to come.
Research showing that more than 90% of climate scientists agree that we’re causing global warming prompted plenty of questions. And the authors are only too happy to answer.
Extreme weather has an outsized impact on everyday life. Focusing on average weather patterns may make Americans dangerously complacent about how climate change is already affecting our lives.
James Whitmore, The Conversation; Michael Hopkin, The Conversation, and Emil Jeyaratnam, The Conversation
More than 160 countries are expected to sign the Paris Agreement in New York on April 22. But enough countries will also need to ratify the treaty domestically before it can become international law.
Australia will be one of more than 160 nations formally signing the Paris climate agreement in New York this week. But delivering on those promises is what really counts.
Could sea levels really rise by several metres this century. Probably not, although this century’s greenhouse emissions could potentially set the stage for large rises in centuries to come.
The Paris agreement has given us some solid targets to aim for in terms of limiting global warming. But that in turn begs a whole range of new scientific questions.
Bill Hare, Potsdam Institute for Climate Impact Research
The inclusion of a 1.5°C goal in the Paris climate deal might have surprised some observers. But in reality, the diplomatic groundwork was laid years before.
A majority of countries want visionary action rather than pragmatism at the Paris climate talks, says the International Institute for Environment and Development’s Saleemul Huq.
At yesterday’s COP21 science briefing, University of Reading climate scientist Ed Hawkins displayed a chilling (pun intended) colour-coded world map. Nation by nation, it showed which countries are already…
Chief Investigator for the ARC Centre of Excellence for Climate Extremes; Deputy Director for the Australian Centre for Excellence in Antarctic Science; Deputy Director for the Centre of Excellence for 21st Century Weather, Australian National University