Global Warming - NASA Earth Observatory
Global warming is happening now, and scientists are confident that greenhouse gases are responsible. To understand what this means for humanity, it is necessary to understand what global warming is, …
Earth’s Temperature Tracker
NASA scientist James Hansen has tracked Earth's temperature for decades, and he is confident the global warming trend of 0.9 degrees Celsius observed since 1880 is mainly the result of human …
Arctic Melt Raises Sea Levels and Reinforces Global Warming
Jun 14, 2011 · For two decades, scientists have predicted these things would happen as the Earth warms, and now we see that the Arctic is changing much as expected. A new assessment report …
Search the Earth Observatory
The Earth Observatory shares images and stories about the environment, Earth systems, and climate that emerge from NASA research, satellite missions, and models.
World of Change: Global Temperatures - NASA Earth Observatory
According to an ongoing temperature analysis led by scientists at NASA’s Goddard Institute for Space Studies (GISS), the average global temperature on Earth has increased by at least 1.1° Celsius (1.9° …
The Ocean Has a Fever - NASA Earth Observatory
In March and April 2023, some earth scientists began to point out that average sea surface temperatures had surpassed the highest levels seen in a key data record maintained by NOAA.
Long-Term Global Warming Trend Continues - NASA Earth Observatory
Scientists at NASA’s Goddard Institute for Space Studies (GISS) say 2012 was the ninth warmest year since 1880, continuing a long-term trend of rising global temperatures. The ten warmest years in the …
2021 Continued Earth’s Warming Trend
The planet is already seeing the effects of global warming: Arctic sea ice is declining, sea levels are rising, and wildfires are becoming more severe. Understanding how the planet is changing—and how …
Global Green Up Slows Warming - NASA Earth Observatory
Updated maps show that the trend has continued, and researchers say reduced global warming is among the consequences. The map above shows where greenness increased (green) and …
Clouds and Global Warming - NASA Earth Observatory
As detailed in the Earth Observatory’s newly updated article, Global Warming, if clouds change as a result of global warming, the change could cause additional warming.