What are the indicators of global climate change?

Ten Clear Indicators Our Climate is Changing. How do we know our climate is changing permanently, rather than just going through a normal period of flux? Let's look at 10 major changes scientists have seen in our climate system to help set the record straight. read more

Few global trends have been as controversial as climate change and the Earth’s warming. The Earth has gone through many shifts in cooling and warming driven by natural factors like the sun’s energy or variations in its orbit, but the trend scientists have seen over the past 50 years is unmistakable. read more

One important way to track and communicate the causes and effects of climate change is through the use of indicators. U.S. Greenhouse Gas Emissions In the United States, greenhouse gas emissions caused by human activities increased by 7 percent from 1990 to 2014 though emissions have decreased since 2005. read more

Global average temperature is one of the most-cited indicators of global climate change, and shows an increase of approximately 1.4°F since the early 20 th Century. The global surface temperature is based on air temperature data over land and sea-surface temperatures observed from ships, buoys and satellites. read more