It’s 20 years since we started blogging on climate here on RealClimate (December 10, 2004). We wanted to counter disinformation about climate change that was spreading through various campaigns. In those days it was an unusual move that prompted a welcome from Nature.  One thing that I didn’t anticipate then was the vast global scale … Read more

There is a need to make climate science more agile and more responsive, and that means moving (some of it) from research to operations. Readers here will know that the climate science community has had a hard time giving quantitative explanations for what’s happened in climate over the last couple of decades. Similarly, we are … Read more

An interesting commentary addressing a rather odd prior commentary makes some very correct points. Back a few months there was a poorly argued and rather confusing commenary by Ulf Büntgen (Buntgen, 2024) that started: I am concerned by climate scientists becoming climate activists, because scholars should not have a priori interests in the outcome of … Read more

The title of this post might seem like a truism, but for about a decade some people have claimed the opposite, and many people have spent much time and effort trying to understand why. Much of that effort was wasted. A decade ago, Nature Geoscience published Cohen et al (2014), a review paper on potential … Read more

A truly impressive paper was published this week with a new reconstruction of global temperatures over the last ~500 million years. There is something tremendously satisfying about seeing a project start, and then many years later see the results actually emerge and done better than you could have imagined. Especially one as challenging as accurately … Read more

Just over a year ago, Shell sued Greenpeace UK, Greenpeace International and nine individuals for millions over a completely peaceful protest. We showed them their bully tactics won’t intimidate us – and now they’ve backed down and settled out of court.  And we’ve made sure not a penny of our supporters’ money will go to Shell. Here’s … Read more

Plastic products have been marketed to us as innocuous items of convenience. Plastic bags, food containers, candy wrappers, packaging of all kinds, meant to make life easier on the go, or to protect our purchases from damage. A cheap and forgettable addition to our increasingly cluttered lives. But of course, these petrochemical by-products are far … Read more

Preserved Forest Area in the Realidade District, Humaitá, Amazonas © Greenpeace Brasil Just ten days after Nature COP took place in Cali, Colombia, high-level negotiations kicked off at the annual climate summit or COP29, in Baku, Azerbaijan. While the Nature summit closed with some wins and some frustration on finance ambition, the climate summit now … Read more

On Christmas Day in 1741, when Swedish scientist Anders Celsius first noted down the temperature in his Uppsala observatory using his own 100-point – or “Centi-grade” – scale, he would have had no idea that this was to be his greatest legacy. A newly published, engrossing biography – Celsius: a Life and Death by Degrees  … Read more

For all of us concerned about climate change, 2023 was a grim year. According to the World Meteorological Organisation (WMO), it was the warmest year documented so far, with records broken – and in some cases smashed – for ocean heat, sea-level rise, Antarctic sea-ice loss and glacier retreat. Capping off the warmest 10-year period … Read more