Climate Change Science
From the unique vantage point in space, NASA collects critical long-term observations of our changing planet.
What Is Climate Change? - the United Nations
Climate change refers to long-term shifts in temperatures and weather patterns. Such shifts can be natural, due to changes in the sun's activity or large ...
What Is Climate Change? - NASA Science
Climate change is a long-term change in the average weather patterns that have come to define Earth's local, regional and global climates.
Climate Change Science | US EPA
EPA tracks the science on the causes of climate change, observations of climate changes today, and the ways climate change could affect ...
Climate Science | Union of Concerned Scientists
Scientists have studied global warming for more than 100 years. Thousands of experts have tested hypotheses, gathered evidence, constructed models, debated ...
Causes and Effects of Climate Change | United Nations
As greenhouse gas emissions blanket the Earth, they trap the sun's heat. This leads to global warming and climate change. The world is now warming faster than ...
The Science of Climate Change Explained: Facts, Evidence and Proof
Here, we've done our best to present you with not only the most accurate scientific information, but also an explanation of how we know it.
What is climate change? A really simple guide - BBC News
Climate change is the long-term shift in the Earth's average temperatures and weather conditions. Between 2014 and 2023, the world was on ...
Climate change: evidence and causes | Royal Society
Scientists have determined that, when all human and natural factors are considered, Earth's climate balance has been altered towards warming.
Future of Climate Change | Climate Change Science | US EPA
Greenhouse gas concentrations in the atmosphere will continue to increase unless the billions of tons of our annual emissions decrease substantially.
The Science of Climate Change | The world is warming
Since 1880, average global temperatures have increased by about 1 degrees Celsius (1.7° degrees Fahrenheit). Global temperature is projected to warm by about ...
Climate change widespread, rapid, and intensifying – IPCC
GENEVA, Aug 9 – Scientists are observing changes in the Earth's climate in every region and across the whole climate system, according to ...
Climate Change: Science and Impacts Factsheet
Earth's ClimateClimate change is altering temperature, precipitation, sea levels, and will adversely impact human and natural systems, including water ...
Climate Change Science Institute | ORNL
The Climate Change Science Institute (CCSI) at Oak Ridge National Laboratory is addressing these challenges by translating data, knowledge, and applied ...
Basics of Climate Change | US EPA
Climate change • Climate change refers to long-term shifts in temperatures and weather patterns. Human activities have been the main driver of climate change, ...
Global Climate Dashboard · Tracking climate change and natural variability over time · Greenhouse Gases · Arctic Sea Ice · Carbon Dioxide · Mountain Glaciers · Ocean ...
IPCC — Intergovernmental Panel on Climate Change
The IPCC was created to provide policymakers with regular scientific assessments on climate change, its implications and potential future risks, as well as to ...
U.S. Global Change Research Program | GlobalChange.gov
The Fifth National Climate Assessment (NCA5) is the preeminent source of authoritative information on the risks, impacts, and responses to climate change in ...
Climate Action Fast Facts - the United Nations
Climate change is the single biggest health threat facing humanity. The impacts are already harming health through air pollution, disease, extreme weather ...
Scientific consensus on climate change - Wikipedia
Surveys of the scientific literature are another way to measure scientific consensus. A 2019 review of scientific papers found the consensus on the cause of ...
Climate change
Present-day climate change includes both global warming—the ongoing increase in global average temperature—and its wider effects on Earth's climate. Climate change in a broader sense also includes previous long-term changes to Earth's climate.
Climate
Climate is the long-term weather pattern in a region, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years.
Climate change mitigation
Climate change mitigation is action to limit the greenhouse gases in the atmosphere that cause climate change. Climate change mitigation actions include conserving energy and replacing fossil fuels with clean energy sources.
Climate change denial
Political ideologyClimate change denial is a form of science denial characterized by rejecting, refusing to acknowledge, disputing, or fighting the scientific consensus on climate change.
Climate communication
Climate communication or climate change communication is a field of environmental communication and science communication focused on discussing the causes, nature and effects of anthropogenic climate change.