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In time for Earth Day, last week Google unveiled Google Earth Timelapse, allowing users to see zoomable videos documenting how the Earth has changed since 1984. Through the eyes of a satellite, users can view sobering and sometimes alarming trends of deforestation, sea-level rise, dried up seas, and urban sprawl. Developers hope that this program, a product of 37 years of documentation, can help people see and believe in climate change and fight back.
Why This Matters: The world is fast approaching its deadline to stop global temperature rise and prevent total climate catastrophe, but in the U.S., the world’s second-largest emissions producer, some politicians are still fighting the climate efforts to control emissions. A recent Gallup poll found that Republicans and Democrats are more divided than ever on climate change. In the wake of COVID-19, many have put their environmental priorities on the backburner. Experts say this tool could help re-invigorate support for environmental causes, using visual storytelling to show people that the natural world is facing a pandemic all its own. More “proof” we need to adhere to the Paris Accord and conserve 30% of the planet by 2030.
The Times They Are A-Changin’
The Google Earth Engine combined over 24 million satellite images to create the cloud-free time lapse. Google worked with U.S. Geological Survey, NASA, and the EU’s Copernicus Program to gather data and Carnegie Mellon University’s CREATE Lab to process and display the images. “More than two million processing hours across thousands of machines in Google Cloud to compile 20 petabytes of satellite imagery into a single 4.4 terapixel-sized video mosaic,” said Google in a statement. The computing was also powered by data centers using 100% renewable energy, in keeping with Google’s emissions goals. The tool is available on desktop and mobile, increasing access to these visual stories.
The tool showcases notable lapses worldwide, including the melting of Alaskan glaciers, the drying of the Aral Sea in Kazakhstan and Uzbekistan, and massive deforestation in the Amazon rainforest. Americans may note drought quickly moving in on the Midwest, and Louisianans can see the state’s coastline rapidly recede. But in addition to showing the public a new perspective, the tool may provide experts with valuable data on large climate systems.
Scientists used a previous version of the time-lapse tool to show that melting permafrost in the Arctic was responsible for increasing summertime landslides on a Canadian Arctic island. Measuring receding permafrost is crucial to fighting climate change because, as permafrost melts, it releases the potent GHG methane into the atmosphere. The tool is also handy for measuring sea level rise, especially in coastal communities prone to hurricanes and flooding. But more optimistically, it could also become a good tool for visualizing the progress the world makes if it stays on track to meet Paris Agreement targets.
To Go Deeper: Watch all the time-lapse sequences here. It’s worth your time. You will be shocked but not surprised.
Jeff Bezos’ commercial space venture, Blue Origin, plans to launch its first crewed ship to space on July 20, aboard its suborbital space tourism rocket, New Shepard. The company announced on Wednesday that one seat aboard that flight will be auctioned off to support its Club for the Future Foundation.
Why this Matters: After much anticipation, space tourism is finally happening. Really.
Last week was so busy with what was happening on Earth, there was hardly time to talk about what happened in space. To start the week, NASA launched a helicopter (named Ingenuity) on Mars — it did not just roll like the Perserverence rover — it flew and that was an amazing first that would […]
Don’t underestimate the power of the moon. Super full moons like the one last night happen when the moon is closest to Earth, and they bring higher tides. For coastal cities like Miami or Boston or Norfolk, high tides also mean an increased risk of flooding.
Why This Matters: “In short, the moon has very strong control over how we experience sea level. It doesn’t affect sea-level rise, but it can hide or exaggerate it,” writes Brian McNoldy, an atmospheric scientist at the University of Miami’s Rosenstiel School of Marine and Atmospheric Science.
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