Present-day climate change includes both global warming —the ongoing increase in global average temperature —and its wider effects on Earth's climate system. Climate change in a broader sense …

Oct 21, 2024 · What Is Climate Change? Climate change is a long-term change in the average weather patterns that have come to define Earth’s local, regional and global climates. These changes have a …

5 days ago · Climate change, the periodic modification of Earth’s climate caused by atmospheric changes and the atmosphere’s interactions with geologic, chemical, biological, and geographic factors.

Nov 18, 2025 · We often think about human-induced climate change as something that will happen in the future, but it is happening now. Ecosystems and people in the United States and around the …

What Is Climate Change? 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 volcanic...

Dec 5, 2025 · The earth's climate is changing. Multiple lines of evidence show changes in our weather, oceans, ecosystems, and more. The buildup of greenhouse gases in our atmosphere and the …

Oct 29, 2025 · What is climate change? Climate change is the long-term shift in the Earth's average temperatures and weather conditions. The world has been warming up quickly over the past 100 …