Real Climate

NOVEMBER 29, 2023

It is 33 years now since the IPCC in its first report in 1990 concluded that it is “certain” that greenhouse gas emissions from human activities “will enhance the greenhouse effect, resulting on average in an additional warming of the Earth’s surface.” It’s not hard to understand. Gray areas show lack of data.

Greenhouse 301

Greenhouse Radiation Cooling Carbon Dioxide 301

Real Climate

AUGUST 12, 2021

I followed with great interest the launch of the sixth assessment report Working Group 1 (The Physical Science Basis) from the Intergovernmental Panel on Climate Change (IPCC) on August 9th. The cause of our changing climate is the increase in atmospheric greenhouse gas concentrations that we have released into the air.

Atmosphere 324

Atmosphere Greenhouse Ocean Sea Level 324

Legal Planet

FEBRUARY 14, 2024

If you’re not a climate scientist—and maybe even if you are—reading news headlines this month has been confounding and a little scary. “In Climate Threshold ,” was the version at Forbes. language was added at the insistence of the highly climate-vulnerable small island states, who recognized that the previous target of 2.0

Paris Agreement 227

Paris Agreement Climate Change 2023 Politics 227

Real Climate

OCTOBER 12, 2021

Last week, the Nobel physics prize was (half) awarded to Suki Manabe and Klaus Hasselmann for their work on climate prediction and the detection and attribution of climate change. This came as quite a surprise to the climate community – though it was welcomed warmly. But let’s go back to the beginning.

Atmosphere 317

Atmosphere Ocean Greenhouse Climate Change 317

Physics World

OCTOBER 6, 2021

Long term, climate change is a greater threat than the COVID-19 pandemic. Without human-induced climate change, that heat would be at least 150 times rarer. On balance, clouds nearer the stratosphere warm us, whereas low-lying clouds tend to cool us because their greenhouse effect is smaller.

Cooling 133

Cooling Atmosphere Climate Change Greenhouse 133

Frontiers

AUGUST 7, 2023

Writing as part of Frontiers’ guest editorials series, the study’s lead author – Prof Martin Siegert, deputy vice chancellor of the University of Exeter (Cornwall) – discusses how without there being a rapid shift to net-zero greenhouse gas emissions by 2050, the Antarctic environment will experience ever more drastic changes.

Ocean 98

Ocean Fossil Fuels Radiation Environmental Science 98

HumanNature

APRIL 10, 2023

Student in the Department of Atmospheric Science at Colorado State University Most people remember the water cycle they learned in school: water evaporates from lakes, rivers, and the ocean, air carrying this moisture rises, cools, condenses, and forms clouds, and these clouds precipitate water back down to the surface.

Climate Change 52

Climate Change Paris Agreement Atmosphere Cooling 52