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Unforced Variations: Dec 2024

30 Nov 2024 by group

This month’s open thread on *climate* topics. Obviously, last month’s events lent themselves to broader discussions, but this month (and going forward), we remind you that comments have to be climate-related.

Note too that there are plenty of dying websites where you can troll to your heart’s content and post tedious partisan talking points, but here they will be unceremoniously deleted. Similarly, self-indulgent and repetitive comments to make the point that everyone is an deluded idiot except you, will also be binned.

Be substantive, be relevant, be concise, and most of all, be nice.

Filed Under: Climate Science, Open thread, Solutions

Twenty years of blogging in hindsight

23 Nov 2024 by rasmus

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. 

[Read more…] about Twenty years of blogging in hindsight

Filed Under: Climate Science, Communicating Climate, Featured Story

Operationalizing Climate Science

17 Nov 2024 by Gavin

There is a need to make climate science more agile and more responsive, and that means moving (some of it) from research to operations.

[Read more…] about Operationalizing Climate Science

Filed Under: Aerosols, Climate impacts, Climate modelling, Climate Science, Featured Story, Greenhouse gases, Instrumental Record, IPCC Tagged With: CMIP6, CMIP7

Unforced variations: Nov 2024

2 Nov 2024 by group

This month’s open thread on climate change topics. How are we in November already? And why is it still so warm… ?

Anyway, please stay on topic and avoid insulting other commenters.

Filed Under: Climate Science, Open thread, Solutions

Science is not value free

18 Oct 2024 by Gavin

An interesting commentary addressing a rather odd prior commentary makes some very correct points.

[Read more…] about Science is not value free

Filed Under: Climate Science, Communicating Climate, Featured Story, Scientific practice Tagged With: activism, advocacy

Cold extremes do in fact decrease under global warming

6 Oct 2024 by Gavin

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.

[Read more…] about Cold extremes do in fact decrease under global warming

Filed Under: Arctic and Antarctic, Climate modelling, Climate Science, Instrumental Record Tagged With: Arctic amplification, extreme events, replication, reproduction

Unforced Variations: Oct 2024

1 Oct 2024 by group

This month’s open thread for climate topics. Please stay vaguely on topic and do not abuse other commenters.

Filed Under: Climate Science, Open thread, Solutions

Phantastic Job!

19 Sep 2024 by Gavin

A truly impressive paper was published this week with a new reconstruction of global temperatures over the last ~500 million years.

[Read more…] about Phantastic Job!

Filed Under: Climate modelling, Climate Science, Paleoclimate Tagged With: Phanerozoic

Unforced Variations: Sep 2024

1 Sep 2024 by group

This month’s open thread on climate topics. Try to be constructive!

Filed Under: Climate Science, Open thread, Solutions

Oh My, Oh Miocene!

28 Aug 2024 by Gavin

A recent paper suggested that ‘climate sensitivity’ derived from a new paleo-CO2 record is around 7.2ºC (for equilibrium climate sensitivity ECS) and ~13.9ºC (Earth System Sensitivity – ESS) for a doubling of CO2. Some press has suggested that this means that “Earth’s Temperature Could Increase by 25 Degrees” (F). Huge if true! Fortunately these numbers should not be taken at face value, but we need to dig into the subtleties to see why.

[Read more…] about Oh My, Oh Miocene!

Filed Under: Carbon cycle, Climate modelling, Climate Science, Greenhouse gases, Paleoclimate Tagged With: ECS, ESS, Miocene, paleo-CO2, replication

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