How can green technology reduce emissions and fossil fuel use? Learn about NASAAero efforts in Electrified Aircraft Propulsion, and how sustainable flight could make travel more affordable and climate friendly.
When it comes to climate change, we play a unique role in observing and understanding changes to the planet. Thanks to NASA’s Earth observations and related research, we know our planet and its climate are changing profoundly. We also know human activities, like releasing carbon dioxide and methane into the atmosphere, are driving this change.
Just like a doctor checks your vitals when you go in for a visit, here at NASA we are constantly monitoring- carbon dioxide levels, global temperature, Arctic sea ice minimum, the ice sheets and sea level, and more. People who study Earth see that the planet’s climate is getting warmer. Earth’s temperature has gone up more than 1 degree Celsius in the last 100 years. This may not seem like much, but small changes in Earth’s temperature can have big effects. The current warming trend is of particular significance, because it is predominantlyPeople drive cars. People heat and cool their houses. People cook food. All those things take energy.
With the CERES instruments, which fly on multiple Earth satellites, our scientists measure the Earth’s planetary energy balance – the amount of energy Earth receives from the Sun and how much it radiates back to space. Over time, less energy being radiated back to space is evidence of an increase in Earth’s greenhouse effect. Human emissions of greenhouse gases are trapping more and more heat.
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