Geneva, Switzerland (WMO) – The Earth’s climate is more out of balance than at any time in observed history, as greenhouse gas concentrations drive continued warming of the atmosphere and ocean and melting of ice, according to the World Meteorological Organization (WMO). These rapid and large-scale changes have occurred within a few decades but will have harmful repercussions for hundreds ...
As high tide laps against the sea wall, tourists walk down the Battery in Charleston in 2020. Mic Smith AP A Charleston County Circuit judge will soon decide whether to dismiss a high-profile climate ...
NASA and the Federal Emergency Management Agency (FEMA) have released a guide that provides resources for adapting to and mitigating impacts of climate change. The guide, Building …
Test your knowledge of global temperature change and its impact on Earth's climate.
Clouds and aerosols are two of the most important, but least understood, aspects of climate change. How much do you know about them?
The leading cause of coral bleaching is rising ocean temperatures due to climate change. Although runoff and pollutants, sunlight, and low tides can impact coral, those impacts normally occur near the …
Over that period, average global sea level has: Sea level is a global climate change indicator. Through continuous long-term measurements of global sea level, scientists can see the ocean’s role in climate …
Earth has many processes that regulate carbon, atmospheric carbon dioxide and its role in the carbon cycle and climate. How much do you know?
Vital Signs of the Planet: Global Climate Change and Global Warming. Current news and data streams about global warming and climate change from NASA.
NASA and the Federal Emergency Management Agency (FEMA) have released a guide that provides resources for adapting to and mitigating impacts of climate change. The guide, Building Alliances for Climate Action, includes various perspectives, stories, insights, and resources about climate change to help individuals and organizations make informed decisions.
The leading cause of coral bleaching is rising ocean temperatures due to climate change. Although runoff and pollutants, sunlight, and low tides can impact coral, those impacts normally occur near the shoreline in shallow waters. The acidity of a substance is measured using the pH scale. Ocean water has a pH of approximately 8.
Over that period, average global sea level has: Sea level is a global climate change indicator. Through continuous long-term measurements of global sea level, scientists can see the ocean’s role in climate and the effects of a changing climate on the ocean. Since 1993, global mean sea level has risen by about 4 inches (10 centimeters).
A large amount of physical evidence shows that carbon dioxide (CO2) is the single most important greenhouse gas in the atmosphere controlling Earth's temperature. This is because CO2, like ozone, N2O, CH4, and chlorofluorocarbons, does not condense and precipitate from the atmosphere at current climate temperatures, whereas water vapor can and does.
Climate is the average weather conditions for a particular location over a long period of time, ranging from months to thousands or millions of years. WMO uses a 30-year period to determine the average climate.
Supplement: State of Climate Services 2024Supplement: Significant Weather & Climate Events 2024The clear signs of human-induced climate change reached new heights in 2024, which was likely the first calendar year to be more than 1.5°C above the pre-industrial era, with a global mean near-surface temperature of 1.55 ± 0.13 °C above the 1850-1900 average.This is the warmest year in the 175 ...
WMO’s State of the Global Climate report 2025 confirms that 2015-2025 are the hottest 11-years on record, and that 2025 was the second or third hottest year on record, at about 1.43 °C above the 1850-1900 average. Extreme events around the world, including intense heat, heavy rainfall and tropical cyclones, caused disruption and devastation and highlighted the vulnerability of our inter ...
Climate change is the term used to describe changes in the state of the climate that can be identified by changes in the average and/or the variability of its properties and that persists for an extended period, typically decades or longer.
The WMO State of the Global Climate report 2022 focuses on key climate indicators – greenhouse gases, temperatures, sea level rise, ocean heat and acidification, sea ice and glaciers. It also highlights the impacts of climate change and extreme weather. Drought, floods and heatwaves affect large parts of the world and the costs are risingGlobal mean temperatures for the past 8 years have ...
The WMO Global Annual to Decadal Climate Update (2025–2029) projects that global temperatures are expected to continue at or near record levels in the next five years, increasing climate risks and impacts on societies, economies and sustainable development.The report forecasts that the annually averaged global mean near-surface temperature for each year between 2025 and 2029 is predicted to ...
The State of the Global Climate 2023 report shows that records were once again broken, and in some cases smashed, for greenhouse gas levels, surface temperatures, ocean heat and acidification, sea level rise, Antarctic sea ice cover and glacier retreat. Heatwaves, floods, droughts, wildfires, and rapidly intensifying tropical cyclones caused misery and mayhem, upending everyday life for ...
Copernicus Climate Change Service and the World Meteorological Organization have issued their second joint annual report on the European State of the Climate.
European State of the Climate : extreme events in warmest year on record
WMO has taken over responsibility for hosting the official Archive of Weather and Climate Extremes - the equivalent of the Guiness Book of records on heat, rainfall, wind, lightning and many other phenomena. It has also issued new guidelines on the evaluation of new records.
SAN DIEGO (FOX 5/KUSI) — San Diego is getting a taste of warm, almost summer-like weather before a big change moves in. Through midweek, temperatures will stay warmer than normal, especially inland.
CBS News: Zoomin' with Zoe: A look at the science backing up climate change
How do we know that the Earth is warming? Everybody has heard the phrase 'climate change,' but how do scientists know that the Earth is warming? Let's zoom in on the science behind climate change.