Real Climate

NOVEMBER 23, 2024

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. The Keeling curve, highlighted with the release of important climate reports and climate summits.

2004 268

2004 Climate Change Atmosphere Carbon Dioxide 268

Union of Concerned Scientists

FEBRUARY 1, 2023

With extreme winter weather breaking out across the United States this week, a question in many people’s minds is—how is climate change affecting winter storms? Can you start with how climate change is generally affecting winter weather in the US? And this also connects to climate change.

Climate Change 351

Climate Change Ocean Atmosphere 351

Union of Concerned Scientists

NOVEMBER 12, 2024

Last month, 44 climate scientists from 15 countries wrote an open letter to the Nordic Council of Ministers highlighting the risk of a potential collapse of the Atlantic Meridional Overturning Circulation (AMOC), a critical ocean current system in the Atlantic Ocean. The Earth’s climate system does not like imbalances in heat!

Climate Scientist 296

Climate Scientist Ocean Sea Level Climate Change 296

Union of Concerned Scientists

FEBRUARY 10, 2025

Understanding sea level rise as a long-term, multi-generational problem is essential to comprehending the scale of climate change and the need for bold action now. While this knowledge may be sobering, it underscores the importance of reducing emissions, holding major polluters accountable, and adapting to a changing world.

Sea Level 252

Sea Level Carbon Dioxide Fossil Fuels Ocean 252

Union of Concerned Scientists

APRIL 5, 2023

Continued flooding in California caused by severe storms called atmospheric rivers continues to shock the country. Human-caused climate change is expected to increase the number and intensity of extreme weather events like hurricanes, floods, and droughts that are already ravaging communities across the United States.

Climate Change 349

Climate Change Atmosphere 2023 Government 349

Union of Concerned Scientists

OCTOBER 29, 2024

Since the last time the UN commissioned such a report—its 1988 Study on the Climatic and Other Global Effects of Nuclear War —the world population has grown and changed in distribution, economies have become more interdependent, and the environment more fragile. What role should scientists play in nuclear weapons policy?

Radiation 309

Radiation Atmosphere Climate Change 2023 309

Union of Concerned Scientists

JULY 29, 2024

My colleague Dr. Kristy Dahl and I arrived in Sofia, Bulgaria, last week for the 61st session of the United Nations’ Intergovernmental Panel on Climate Change (IPCC). These documents offer an internationally accepted summary of the state of climate science, and form the backbone of many legal briefs I prepare.

Climate Change 289

Climate Change Fossil Fuels Carbon Dioxide Paris Agreement 289

Legal Planet

JUNE 3, 2024

Rather than rehearse familiar arguments, I want to focus specifically on climate change. In my view, holding out for ideal climate policies makes no sense. Because of the nature of climate change, delay is just too costly. Climate change is a unique problem in many ways.

Climate Change 246

Climate Change Atmosphere Carbon Emissions Politics 246

Legal Planet

APRIL 9, 2025

Graphic: Scripps Institution of Oceanography at UC San Diego Teaching the climate change unit last week in my International Environmental Law and Policy class, I found myself so moved that I started crying at the board. My poor students thought I was in distress.I

Carbon Dioxide 204

Carbon Dioxide Climate Change Atmosphere Law 204

Union of Concerned Scientists

MARCH 19, 2025

Climate models are the main tool climate scientists use to predict how Earth will respond to more heat-trapping pollutants in the atmosphere. But what exactly is a climate model? Lets start off easy by breaking down the phrase climate model.” change at each grid point. What causes a circulation?

Atmosphere 171

Atmosphere Ocean Radiation Climate Scientist 171

Legal Planet

DECEMBER 3, 2021

I feel like climate change is going to have to get worse before it gets better. Climate change has been a big, scary, looming problem for basically the entirety of my life; I cannot remember a time when it was not at least a background concern. This holiday season, I’m especially grateful for their tone of determination.

Climate Change 264

Climate Change Paris Agreement Fossil Fuels Politics 264

Circle of Blue

NOVEMBER 2, 2021

Climate Change Grips Trout Streams Across the Nation: How Anglers Are Responding Across the country, anglers have watched as droughts, floods, and high temperatures batter the rivers they depend on. The issue has begun changing minds about climate change among recreational fishermen, a demographic that leans politically conservative.

Climate Change 306

Climate Change Conservation Politics Natural Resources 306

Real Climate

APRIL 6, 2023

The summary for policymakers of the Intergovernmental Panel on Climate Change (IPCC) sixth synthesis report was released on March 20th (available online as a PDF ). There is a recording of the IPCC Press Conference – Climate Change 2023: Synthesis Report for those who are interested in watching an awkward release of the report.

Climate Change 322

Climate Change Fossil Fuels Greenhouse 2012 322

Union of Concerned Scientists

SEPTEMBER 12, 2024

Last year, I met Dave Schneider, a climate scientist who studies ice sheets and climate systems, work very similar to my own. that’s specifically about climate change and fossil fuel accountability. I checked out the science books, and there were some interesting titles but literally nothing about climate change.

Climate Change 279

Climate Change Fossil Fuels Climate Scientist Atmosphere 279

Union of Concerned Scientists

MARCH 18, 2025

The worlds largest fossil fuel and cement producers have known for decades that their products cause climate change, yet they spread disinformation to misinform the public and have profited as people around the world have suffered from ever-worsening climate impacts.

Sea Level 190

Sea Level Fossil Fuels Climate Change 2020 190

Union of Concerned Scientists

APRIL 8, 2025

Floods can come from rain-on-snow events and from high spring temperatures that melt the snow faster, and climate change is triggering earlier and faster snowmelt. In the Midwest, Lake Erie has the LEOFS (Lake Erie Operational Forecast System) to better manage water levels affected by seasonal variations and climate change.

Climate Change 186

Climate Change 2017 Atmosphere 2012 186

Union of Concerned Scientists

APRIL 4, 2024

Fossil fuels are the main driver of climate change and the terrifying effects of it that we see happening across the world. That makes this dataset a powerful tool for understanding how each of these entity’s heat-trapping emissions have contributed to climate change. The fossil fuel industry knew that too.

Fossil Fuels 279

Fossil Fuels Climate Change Paris Agreement Carbon Dioxide 279

Union of Concerned Scientists

FEBRUARY 13, 2025

Wetlands help mitigate climate change by trapping and storing carbon. While development, forestry, and climate change all contribute to wetland loss, draining for agriculture has been the single biggest cause since the 1800s. But wetland loss doesnt just increase flood riskit also drives climate change.

Clean Water Act 211

Clean Water Act Climate Change Conservation Environmental Protection 211

Circle of Blue

NOVEMBER 22, 2021

The rains were the result of a weather phenomenon known as an “atmospheric river,” a narrow column that transports water vapor from the tropics to the poles. Atmospheric rivers are projected to intensify as the climate continues to warm. Atmospheric rivers are not uncommon in the region.

Atmosphere 246

Atmosphere Climate Scientist Environmental Science Climate Change 246

Union of Concerned Scientists

JULY 3, 2022

is a serious blow to the EPA’s ability to fight climate change—and could have dangerous repercussions beyond this case. The timing of the decision feels especially harsh, as the nation is in the throes of the “ Danger Season ” for hazards such as heat waves, drought, wildfires and hurricanes, all worsened by climate change.

Climate Change 272

Climate Change Fossil Fuels Carbon Emissions Nitrogen Oxides 272

Union of Concerned Scientists

MARCH 17, 2025

The IPCC compiles scientific insights on climate change, informing policymakers and the public about risks and possible actions. In essence, combined with climate models, they provide a way to envision the consequences of different actions or inactions. What Are Future Climate Scenarios?

Radiation 173

Radiation Sea Level Climate Change Fossil Fuels 173

Union of Concerned Scientists

MARCH 12, 2025

Climate models are the main tool scientists use to assess how much the Earths temperature will change given an increase in fossil fuel pollutants in the atmosphere. As a climate scientist, Ive used them in all my research projects, including one predicting a change in Southwestern US precipitation patterns.

Atmosphere 144

Atmosphere Climate Scientist Ocean Fossil Fuels 144

Law and Environment

AUGUST 9, 2021

The IPCC has released its Sixth Assessment Report on the physical science basis of climate change. Here are a number of the lowlights: It is unequivocal that human influence has warmed the atmosphere, ocean and land. Widespread and rapid changes in the atmosphere, ocean, cryosphere and biosphere have occurred.

Climate Change 190

Climate Change Sea Level Ocean Atmosphere 190

Union of Concerned Scientists

OCTOBER 31, 2024

Now, what’s desperately needed are new funding commitments from countries to help meet the significant and growing needs as the climate crisis worsens. Climate vulnerable countries need funding to start flowing quickly. C above pre-industrial levels, and underscoring how world leaders are failing their people. to 2.8 °C

Fossil Fuels 240

Fossil Fuels Paris Agreement Renewable Energy Climate Change 240

Union of Concerned Scientists

MARCH 7, 2023

Attribution science , which is about understanding the role of climate change versus natural weather patterns and climate variability, can help us better understand the connections between extreme weather and climate change, provide new insight into what specific emissions are driving the worst impacts, and help shape climate solutions.

Climate Change 317

Climate Change Sea Level Fossil Fuels Carbon Dioxide 317

Yale E360

FEBRUARY 1, 2023

Recent studies reveal that tiny pieces of plastic are constantly lofted into the atmosphere. These particles can travel thousands of miles and affect the formation of clouds, which means they have the potential to impact temperature, rainfall, and even climate change. Read more on E360 →

Atmosphere 337

Atmosphere Climate Change 337

Union of Concerned Scientists

DECEMBER 11, 2024

For the first time, the Arctic Report Card assessed that the Arctic is faltering as a reliable area for storing carbon away from the atmosphere ( Natalie et al., It was its first failing grade after thousands of years holding onto more carbon than released to the atmosphere. in Arc2024 ). Methane releases were sustained as well.

2024 184

2024 Carbon Dioxide Sea Level Atmosphere 184

Inside Climate News

NOVEMBER 14, 2024

By Georgina Gustin At its annual conference on climate change this week, the United Nations released a major report saying the world has little hope of reaching global climate targets without quickly lowering emissions of nitrous oxide, a greenhouse gas that’s nearly 300 times more powerful at warming the atmosphere than carbon dioxide.

Ozone 117

Ozone Carbon Dioxide Atmosphere Greenhouse 117

Circle of Blue

JULY 1, 2021

The Detroit cloudburst was the result of a nasty weather combination—a cold front sweeping across the Midwest, plus a mass of humidity hanging over the city—which promises to be all the more powerful as the climate continues to warm. The post Detroit Flooding Previews Risks from a Warming Climate appeared first on Circle of Blue.

Atmosphere 349

Atmosphere Ocean Climate Change 2013 349

HumanNature

NOVEMBER 18, 2024

Student in the Department of Biology and Graduate Degree Program in Ecology at Colorado State University Seeing is Believing What do you picture when you think of climate change? Climate change is one of the greatest challenges facing the world. climate change is set to impact everyone.

Climate Change 52

Climate Change 2025 2024 Atmosphere 52

PA Environment Daily

NOVEMBER 11, 2024

Interested in understanding how climate change affects our groundwater and what it means for the environment and economy? Join PA Sea Grant and the Department of Environmental Protection for the upcoming Pennsylvania Lake Erie Environmental Forum webinar on Groundwater and Climate Change on November 19 from 1:00 to 3:00 p.m.

Climate Change 100

Climate Change Atmosphere Environmental Science Ocean 100

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 357

Atmosphere Greenhouse Ocean Sea Level 357

Enviromental Defense

NOVEMBER 13, 2024

Don’t forget to add on top of that the cost of climate change. From increasing costs of insurance and everyday items like coffee and chocolate, to major expenses when dealing with climate crisis infrastructure damage, like damaged roads, bridges and buildings, we know climate change is expensive.

Climate Change 52

Climate Change Fossil Fuels Renewable Energy Atmosphere 52

ESA

OCTOBER 30, 2024

By Astrid Caldas Target 8 of the Convention on Biological Diversity’s Kumming-Montreal Global Biodiversity Framework (KMGBF) is to “Minimize the impacts of climate change on biodiversity and build resilience.” link to [link] Cover of the book titled ‘Biodiversity and Climate Change.

Climate Change 52

Climate Change Atmosphere Conservation Natural Resources 52

Real Climate

OCTOBER 1, 2022

I have a feeling that we are seeing the start of a new wave of climate change denial and misrepresentation of science. When looking at the effect of changes in greenhouse gases, one must look at how their forcing corresponds to the energy balance at the top of the atmosphere. References. 679-688, 2016.

Greenhouse 340

Greenhouse Radiation 2007 Atmosphere 340

Enviromental Defense

MAY 15, 2024

Since starting with Environmental Defence in January, I’ve been grappling with an updated version of those song lyrics: “Why we must talk about climate change when everything is burning?” Given the human cost of climate change, you might think that talking about it while it is ravishing our nation would be easy.

Climate Change 140

Climate Change Fossil Fuels 2013 Politics 140

Circle of Blue

AUGUST 16, 2021

This week, Circle of Blue looks at a major new climate report, which finds that a warming planet is accelerating the water cycle. The Intergovernmental Panel on Climate Change, a group of the world’s leading climate scientists, has released its sixth assessment report. The report, while grim, does offer hope.

2021 264

2021 Atmosphere Climate Change Sea Level 264