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Climate change is threatening the sustainability of low Earth orbit, with new research from MIT revealing that shrinking atmospheric layers could significantly reduce the number of satellites able to operate safely by the end of the century.
Climate change is altering the environment of near-Earth space in ways that could significantly reduce the number of satellites able to safely operate in low Earth orbit by the century's end, according to a new study by the Massachusetts Institute of Technology (MIT), as reported by Anadolu Agency.
Published in Nature Sustainability on Monday, the research reveals that greenhouse gas emissions are causing the upper atmosphere, particularly the thermosphere, to shrink. This is the region where the International Space Station and most satellites orbit.
As the thermosphere contracts, the thinning air reduces the natural drag that typically slows down old satellites and space debris, causing them to re-enter the atmosphere and burn up. With less drag, defunct satellites and space junk will remain in orbit for much longer, increasing collision risks and overcrowding in low Earth orbit.
Researchers project that by 2100, the capacity of key orbital regions could decrease by 50%-66% if emissions continue to rise. The study highlights the urgent need for emission reductions and careful management of satellite launches.
The U.S. economy faces a 40% risk of recession in the second half of 2025, JP Morgan analysts said on Wednesday, citing rising tariffs and stagflation concerns.
A magnitude 5.5 earthquake struck off Japan’s Tokara Islands on Wednesday, with no tsunami warning issued but residents advised to remain vigilant.
China has ramped up efforts to protect communities impacted by flood control measures, introducing stronger compensation policies and direct aid from the central government.
The European Commission is set to propose allowing carbon credits from other countries to count towards the EU’s 2040 climate target, according to a leaked internal document.
Severe rain in Venezuela has caused rivers to overflow and triggered landslides, sweeping away homes and collapsing a highway bridge, with five states affected and no casualties reported so far.
Global temperatures in 2024 exceeded the crucial 1.5°C threshold above pre-industrial levels for the first time, marking a serious warning for the world’s climate goals under the Paris Agreement, scientists said.
Wildfires and a severe heatwave sweeping across Europe have claimed the lives of two people in Spain and another two in France, while also causing the shutdown of a nuclear reactor in Switzerland.
Azerbaijan, Kazakhstan and Uzbekistan have established a joint venture to implement the Green Energy Corridor: Azerbaijan–Central Asia project aimed at building infrastructure for clean energy transmission and strengthening a regional energy cooperation.
A Clean Energy Centre will be officially launched during the 17th Economic Cooperation Organization (ECO) Summit, to be hosted by Azerbaijan this week, announced Asad M. Khan, Secretary General of the ECO.
The European Union plans to cut greenhouse gas emissions by 90% by 2040 and, for the first time, allow limited use of foreign carbon credits to meet the target.
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