Sunday, February 23News That Matters

Environment

Severe Thunderstorms in Australia Claim Six Lives

Severe Thunderstorms in Australia Claim Six Lives

Breaking News, Disasters, Environment
(27.12.2023) Austraila, Severe thunderstorms in Australia’s eastern states over the Christmas holidays have claimed the lives of at least six people, with three others reported missing. Tens of thousands of households in Queensland are without power due to the impact of the storms. Police in Victoria and Queensland have confirmed the deaths, including a nine-year-old girl who was reportedly swept away in a flooded stormwater drain. Two people are missing after their boat capsized south of Green Island near Brisbane, and a 46-year-old woman is also being sought after being caught in floodwaters north of Brisbane in Gumpie. Severe thunderstorms struck on December 25 and 26, bringing large hailstones, high winds, and torrential rains. The adverse weather conditions led to river flooding...
Volcanic Eruptions and Astronomical Cycles Linked to Historical Climate Change, Study Reveals

Volcanic Eruptions and Astronomical Cycles Linked to Historical Climate Change, Study Reveals

Disasters, Environment
A recent analysis published in the journal Earth-Science Reviews sheds light on the connection between large volcanic eruptions, astronomical cycles, and historical climate change. While human-induced greenhouse gas emissions are responsible for modern climate change, the study highlights that climate change in the Earth’s history was influenced by a different set of factors. Key Findings: Volcanic Eruptions in Earth’s History The study reveals that large volcanic eruptions in the Earth’s past released significant amounts of carbon dioxide into the atmosphere. This resulted in extreme greenhouse climate warming, nearly causing mass extinctions and environmental crises. These volcanic events occurred cyclically, with a pattern of every 26 to 33 million years. Notably, the study ...
Polar Bear Populations Decline in Greenland Over 20,000 Years Due to Climate Change

Polar Bear Populations Decline in Greenland Over 20,000 Years Due to Climate Change

Breaking News, Environment
A comprehensive international study, including researchers from the University of Copenhagen, reveals a concerning decline in polar bear numbers in Greenland over the last 20,000 years. The research, combining genetic analysis, food habits, habitat study, and historical climate data, points to rising sea temperatures as the key driver behind this decline. The study, published in Science Advances, emphasizes the impact of global warming, leading to increased sea temperatures and reduced sea ice, consequently affecting the polar bear‘s primary food source – seals. Michael Westbury, lead author and assistant professor at the University of Copenhagen, highlights the non-linear relationship, where even small environmental changes significantly impact polar bear populations. The research ind...
Unprecedented Greenland Bedrock Core Reveals Past Ice Melt and Sea-Level Rise Secrets

Unprecedented Greenland Bedrock Core Reveals Past Ice Melt and Sea-Level Rise Secrets

Environment
In a historic feat, scientists have successfully extracted the longest-ever core of rock from beneath Greenland’s vast ice sheet. The GreenDrill project, with a budget of $7 million, achieved this breakthrough by drilling through 509 meters of ice at Prudhoe Dome, unearthing 7.4 meters of frozen sediment and rock. This achievement not only provides valuable insights into the island’s historical ice stability but also offers clues about its potential contributions to sea-level rise. The core, exposed to air at some point in the past three million years, presents a unique opportunity to understand Greenland’s complex environmental history. Preliminary analysis reveals high levels of beryllium-10, a radioactive isotope formed when rock is exposed to cosmic rays and air. The extensive prese...
Climate Change’s Chilling Impact on Global Rivers leads to Troubling Tale of Water Quality

Climate Change’s Chilling Impact on Global Rivers leads to Troubling Tale of Water Quality

Breaking News, Environment, Learning & Developments
In the intricate tapestry of our planet’s ecosystems, rivers have long been the lifeblood, nurturing not only the lands they flow through but also the communities that depend on them. However, a recent review of nearly a thousand studies has cast a somber shadow on the state of our world’s rivers. It tells a tale of climate change‘s relentless assault on water quality, a narrative of concern for the vital resource that sustains life. An international team of experts, led by Utrecht University in the Netherlands and including scientists from the University of Adelaide, delved into 965 studies from every corner of the globe, conducted between 2000 and 2022. Their findings paint a picture of climate change’s profound impact on our rivers, shaking the very foundations of these ecosystems. ...
Climate Change Poses Growing Risk of Glacial Lake Outburst Floods in the Third Pole Region

Climate Change Poses Growing Risk of Glacial Lake Outburst Floods in the Third Pole Region

Breaking News, Environment, Thoughts & Talks
December 17, 2023, A new study published in the journal Nature Communications has raised climate change alarms about the increasing threat of Glacial Lake Outburst Floods (GLOFs) in the Third Pole region, encompassing the Tibetan Plateau, the Himalayas, Hindu Kush, and Tianshan Mountain ranges. Researchers from the Chinese Academy of Sciences have highlighted the vulnerability of this ecologically crucial area to the impacts of climate change. The research indicates that the expansion of glacial lakes and the emergence of new ones in the Third Pole region are likely to result in a higher frequency of GLOFs in the coming years. This calls for the development of improved analytical methods and datasets to anticipate and mitigate potential disasters associated with these events. The Thi...
Octopus DNA Reveals Evidence of West Antarctic Ice Sheet Collapse During Last Warm Spell

Octopus DNA Reveals Evidence of West Antarctic Ice Sheet Collapse During Last Warm Spell

Breaking News, Environment
In a groundbreaking study published in Science, scientists have turned to the DNA of octopuses living in Antarctica’s frigid waters to uncover evidence of the West Antarctic Ice Sheet’s (WAIS) collapse during the Last Interglacial, a warm period 129,000 to 116,000 years ago. Lead author Sally Lau from James Cook University and her team analyzed the genes of geographically-isolated populations of Turquet’s octopus, discovering genetic mixing that indicated the existence of trans-West Antarctic seaways connecting the Weddell, Amundsen, and Ross seas. The findings suggest that WAIS collapsed during the Last Interglacial when global temperatures were approximately 1.5 degrees Celsius warmer than pre-industrial levels, reflecting current conditions due to human-induced climate change. The st...
2°C Global Temperature Rise Could Make Indus Valley Uninhabitable for 2.2 Billion

2°C Global Temperature Rise Could Make Indus Valley Uninhabitable for 2.2 Billion

Breaking News, Environment, Learning & Developments
A new study in the journal Proceedings of the National Academy of Sciences warns that if global temperature rise by 2 degrees Celsius above pre-industrial levels, about 2.2 billion people living in the Indus River Valley in northern India and eastern Pakistan may face prolonged periods of heat exceeding human tolerance. The research indicates that regions including northern India, eastern Pakistan, eastern China, and Sub-Saharan Africa will experience high-humidity heatwaves, which are even more dangerous due to reduced evaporative cooling capabilities. These areas are primarily home to lower-to-middle-income countries, where many individuals lack access to air conditioning or effective means to combat the health risks associated with extreme heat. Beyond specific thresholds of he...
Arctic Witnesses Record-Breaking Warmth in 2023, Signaling Alarming Climate Changes

Arctic Witnesses Record-Breaking Warmth in 2023, Signaling Alarming Climate Changes

Breaking News, Environment
The year 2023 has set a disturbing record as the warmest summer ever recorded in the Arctic, with far-reaching consequences for both the region and the global environment. This revelation comes from the recently released Arctic Report Card for 2023, a collaborative effort involving 82 scientists worldwide who assessed the Arctic’s vital signs, highlighting the profound effects of climate change. The summer of 2023 shattered the previous temperature record set in 2016, with temperatures in July, August, and September rising significantly, surpassing the 2016 record by four times the usual increment. Wildfires ravaged Canada, Greenland experienced unusual warmth leading to ice melting, and sea surface temperatures in various Arctic seas soared to 9 to 12 degrees Fahrenheit (5 to 7 degrees...