Tag: Global Warming
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Climate Comeback: How Earth Exited the Last Ice Age
Introduction: A World Cooling and Then Awakening Around 20,000 years ago, Earth faced a dramatic chill. Global temperatures were about 10 degrees Fahrenheit cooler than today, and much of North America wore a thick blanket of ice. Some regions saw ice nearly half a mile high, creating a landscape of plains, fjords, and channels carved…
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COP30 in Brazil: The World’s Climate Gap and What Needs to Change
COP30 Faces a Stark Reality: The Emissions Gap Widens The COP30 summit in Brazil arrives at a troubling moment for climate policy. Despite years of negotiations, the world is still far from reducing heat-trapping emissions fast enough to meet the goals of the Paris Agreement. As governments gather, experts warn that current pledges aren’t sufficient…
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How Earth Emerged from the Last Ice Age
Introduction: A World Locked in Ice About 20,000 years ago, much of North America and large swaths of the planet were buried under ice. Global temperatures sat roughly 10°F cooler than today, and in some regions ice sheets reached nearly half a mile in thickness. The Earth’s climate was a stark reminder of how sensitive…
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At UN climate summit, vulnerable nations plead for action
Global spotlight on frontline communities As world leaders converged on the edge of the Amazon rainforest for the annual United Nations climate summit, officials from the globe’s most climate-vulnerable countries delivered blunt, personal accounts of the toll that rising temperatures and extreme weather are taking on their people. The dispatches from capital cities like Port-au-Prince,…
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UN Climate Summit: Vulnerable Nations Flag Global Warming Impacts
Frontline Voices Highlight Warming Harms Belem, Brazil — As world leaders gather near the Amazon, officials from countries most exposed to climate shifts delivered stark, firsthand accounts of how rising temperatures and intensifying extreme weather are reshaping lives. At this year’s United Nations climate summit, the urgency was palpable: the planet is warming, and the…
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Earth’s Quiet Sputter: NASA Data Reveals Uneven Solar Absorption and Looming Climate Imbalance
Summary: A Subtle But Critical Shift in Earth’s Energy Balance New satellite measurements over the past 24 years have illuminated an unsettling trend: Earth is absorbing more sunlight than before, and the distribution of this absorbed energy is uneven. NASA researchers report that the Northern Hemisphere is darkening at a faster rate than the Southern…
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Why Sun-Dimming as a Climate Fix Is Faulty Science
Rethinking an Extreme Solution to Global Warming As global temperatures climb and climate models become more alarming, a controversial idea has moved from the fringes of academic debate to the edge of policy discussions: sun-dimming geoengineering. Proponents argue that releasing fine aerosols into the upper atmosphere could reflect a portion of sunlight back into space,…
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Antarctic Sea Ice Emerges as Accelerator of Global Warming
New clues from the sea ice–ocean–atmosphere link A groundbreaking study led by Linus Vogt of Sorbonne University has unveiled a stronger-than-expected connection between Antarctic sea ice, cloud cover, and global warming. Using an emergent constraint that blends satellite observations (1980–2020) with results from 28 Earth system models, the researchers found that the current extent of…
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Scientists Warn of Potential Climate Catastrophe Due to Ocean Current Shutdown
Understanding the Atlantic Meridional Overturning Circulation The Atlantic Meridional Overturning Circulation (AMOC) is a crucial ocean current that helps regulate the Earth’s climate. This system transports warm, salty water northward from the tropics to the North Atlantic, where it cools and sinks, before returning southward. It’s a key component of the global climate system, influencing…
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Understanding the Risks of Atlantic Meridional Overturning Circulation Collapse
Introduction to the Atlantic Meridional Overturning Circulation The Atlantic Meridional Overturning Circulation (AMOC) is a crucial component of Earth’s climate system. This large system of ocean currents, including the Gulf Stream, regulates temperatures and weather patterns across the globe. Recent scientific studies raise a significant alarm regarding the stability of AMOC, suggesting that its collapse…