Real Climate

NOVEMBER 11, 2023

are used all over the world, based on calculations that quantify the effects of physical mechanisms and the way different parts of the atmosphere are connected to each other. The physics-based models describe how energy flows through the atmosphere and ocean, as well as how the forces from different air masses push against each other.

Sea Level 293

Sea Level Greenhouse Climate Change Atmosphere 293

Real Climate

AUGUST 12, 2021

And since the first IPCC estimates published in 2013, we have learned a lot and have gotten much better at estimating remaining carbon budgets. How have these estimates changed since previous reports? IPCC reported carbon budgets for the first time in 2013. in 2018, but they represent a significant update since AR5 in 2013.

2018 329

2018 Climate Change 2013 2014 329

Physics World

OCTOBER 30, 2021

With the United Nations Climate Change Conference (COP26) coming up next month, it is strange to think that less than 100 years ago global warming was not widely accepted, even among experts. The non-expert in question was Guy Callendar , a British steam engineer doing his own atmospheric research at home.

Carbon Dioxide 116

Carbon Dioxide Fossil Fuels Atmosphere 2007 116

Physics World

OCTOBER 6, 2021

Long term, climate change is a greater threat than the COVID-19 pandemic. As air sunk through the atmosphere, it got squeezed and heated. Without human-induced climate change, that heat would be at least 150 times rarer. Taken together, however, clouds in today’s atmosphere have an overall net cooling effect.

Cooling 133

Cooling Atmosphere Climate Change Greenhouse 133

Real Climate

AUGUST 9, 2021

Here are a few things that mark this report out from previous versions that relate to issues we’ve discussed here before: Extreme events are increasingly connected to climate (duh!) Extremes : Back in 2012, the literature assessed by AR5 connecting changes in extremes to climate change was scant.

Sea Level 341

Sea Level 2012 Radiation Ocean 341