climate change Archives - Page 25 of 40

Oct42024 by Editor DeskNo Comments

How Climate Change is Fueling Unpredictable and Intensified Storms: Urgent Need for Adaptation and Advanced Forecasting

Breaking News, Climate Actions, Disasters

As global temperatures rise and ocean heat reaches record levels, the world’s most powerful storms hurricanes, typhoons, and tropical cyclones are undergoing unprecedented transformations. These changes are pushing scientists to rethink how we understand and predict these storms, often called “nature’s steam engines” due to their ability to convert ocean heat into massive kinetic energy. The consequences of these more intense, unpredictable storms are severe, and scientists are racing to understand the evolving patterns to adapt and protect vulnerable communities. How Climate Change is Redefining Storm Dynamics Rising Ocean Temperatures Hurricanes draw their energy from warm ocean waters. As global warming drives sea temperatures to new highs, the energy available for storms in...

Sep302024 by Editor DeskNo Comments

Scientists Unveil New Findings on Thunderstorm Ground Enhancements

Breaking News, Climate Actions, Environment

Scientists at the Alikhanyan National Science Laboratory on Mount Aragats have uncovered new insights into a mysterious atmospheric phenomenon known as Thunderstorm Ground Enhancements (TGEs). Led by physicist Ashot Chilingarian, the research offers a deeper understanding of how thunderstorms affect the Earth's atmosphere and could shed light on larger cosmic processes. TGEs are intense bursts of electromagnetic activity that occur during thunderstorms, where electrons are accelerated to high speeds by strong electric fields. These accelerated electrons produce gamma rays, a type of high-energy radiation, as they collide with atomic nuclei in the atmosphere. The phenomenon has been largely overlooked in previous thunderstorm research, but scientists now believe it plays a significant ro...

Sep292024 by Editor DeskNo Comments

Breaking Discovery Earth’s Inner Core May Have an Even Deeper Hidden Layer

Breaking News, Environment

Scientists have uncovered new evidence that suggests Earth's inner core long believed to be a solid iron sphere may actually consist of two distinct layers. This revelation could potentially reshape our understanding of Earth's formation and the events that shaped its early history. "Traditionally, we've been taught that Earth has four main layers: the crust, the mantle, the outer core, and the inner core," said Joanne Stephenson, a geophysicist from the Australian National University, in 2021. However, new research led by Stephenson and her colleagues indicates that Earth's inner core is more complex, featuring an additional, even deeper "inner-inner" core. For years, scientists have inferred what lies beneath Earth's surface by studying seismic waves from earthquakes. These waves t...

Sep282024 by Editor DeskNo Comments

Extreme Weather Events in South America Triple in Frequency Since 1970

Breaking News, Climate Actions, Environment

The frequency of days with extreme heat, dryness, and high fire risk has tripled in certain parts of South America since 1970, according to recent research. The study highlights that while the continent is warming at the same rate as the global average, specific regions are increasingly vulnerable to the co-occurrence of these climate extremes, which pose significant threats to ecosystems, economies, and public health. The most affected areas include the Venezuela-Colombia border, the northern Amazon, and parts of central South America near the Río de la Plata basin. In these regions, the number of days with compounded climate extremes has skyrocketed from fewer than 20 to as many as 70 per year. The variability of these extreme events has also increased from year to year. Impact of ...

Sep252024 by Editor DeskNo Comments

Slowing Down for a Greener Future: Scientists Propose 15% Reduction in Flight Speeds to Combat Climate Change

Breaking News, Environment

In an unexpected turn of events for the aviation industry, scientists from the University of Cambridge have put forth a compelling argument suggesting that reducing flight speeds by 15% could significantly mitigate the environmental impact of air travel. This proposal, detailed in a recent report, indicates that such a change could lead to a reduction in fuel consumption by 5% to 7%, contributing to a greener aviation sector while potentially adding up to 50 minutes to transatlantic flights. The aviation industry is responsible for approximately 2.5% of global carbon dioxide (CO2) emissions. When accounting for non-CO2 effects, this figure rises to around 4%, highlighting the need for immediate action as air travel becomes increasingly accessible. Currently, only about 10% of the global...

Sep242024 by Editor DeskNo Comments

Cities on the Frontlines: Global Push for Resilient and Net-Zero Urban Development

Breaking News, Climate Actions, Disasters

As cities around the world face mounting challenges like extreme weather, housing crises, and climate change, urban resilience has become a central focus for ensuring long-term viability and quality of life. With 70% of global CO2 emissions stemming from urban areas, cities are now at the forefront of climate action. The urgency is only set to grow, as nearly 70% of the world’s population is projected to live in cities by 2050, putting further stress on infrastructure, housing, water, and energy systems. At the World Economic Forum’s Sustainable Development Impact Meetings (SDIM), experts discussed the need for bolder, integrated strategies that prioritize a net-zero, nature-positive transition. The Urban Blueprint Session explored new business models and joint approaches to tackle both...

Sep222024 by Editor DeskNo Comments

Study Finds Droughts Could Last 10 Days Longer by Century’s End

Breaking News, Disasters

A new study published in Nature reveals that the average duration of the longest annual drought periods could be 10 days longer by the end of this century than previously predicted. This new estimate, based on improved climate modeling techniques, indicates that the risks posed by droughts to societies and ecosystems may be more severe than previously thought. Researchers led by Irina Petrova and Diego Miralles examined drought projections from multiple climate models under moderate and high-emissions scenarios (IPCC's SSP2-4.5 and SSP5-8.5). They calibrated these projections using historical data from 1998 to 2018, focusing on the longest annual dry spells the number of consecutive dry days each year. Key Findings The study suggests that drought periods could extend by 42–44% on ...

Sep202024 by Editor DeskNo Comments

Heat Waves on the Rise: How Jet Stream Changes Create Dangerous Heat Domes

Breaking News, Climate Actions

Recent meteorological diagrams reveal the alarming rise of heat domes over the continental United States, raising concerns as climate patterns shift. According to NOAA, these heat domes form when high pressure in the mid-atmosphere acts like a cap, trapping heat at the Earth’s surface. The longevity of these heat domes is closely tied to the behavior of the jet stream, a fast-moving band of winds located about 30,000 feet above sea level. The jet stream typically flows from west to east, influenced by temperature differences between warm tropical air and cold polar air. However, its meandering path can significantly affect weather patterns. Jet Stream's Impact on Weather As the jet stream meanders, it creates areas of high (H) and low (L) pressure, influencing weather across the U...

Sep202024 by Editor DeskNo Comments

New Data Shows Climate Adaptation Urgent as Cities Face Rising Hazards Amid Warming

Breaking News, Environment, Idea & Innovations

With over two-thirds of the world's population expected to live in cities by 2050, new data from the World Resources Institute (WRI) reveals the stark challenges urban areas will face due to climate change. The analysis, focused on the 1,000 largest cities globally, highlights the growing threats from extreme heat, disease, and energy demand, with low-income regions particularly vulnerable. Under a scenario of 3 degrees Celsius (5.4 degrees Fahrenheit) of warming above pre-industrial levels, cities could endure significantly longer and more frequent heat waves compared to 1.5 degrees Celsius (2.7 degrees Fahrenheit) of warming. This would trigger skyrocketing demand for cooling and heighten risks from diseases such as dengue and Zika. The report underscores the urgent need for climate a...

Sep182024 by Editor DeskNo Comments

Study Finds Children Born in 2020 to Face Twice as Many Wildfires as Those Born in 1960

Breaking News, Disasters, Environment

Children born in 2020 are projected to experience double the number of wildfires over their lifetimes compared to those born in 1960, according to recent studies. In regions like California, wildfires have become a common occurrence during the summer and fall seasons, releasing harmful particulate matter (PM₂.₅) into the air that poses significant health risks. Wildfire-produced PM₂.₅ can penetrate deep into the lungs, causing immediate respiratory issues. While short-term exposure is linked to acute health problems like asthma, the long-term effects of repeated exposure are still unclear. A major challenge is accurately measuring wildfire-related PM₂.₅ exposure, as the intensity of pollution can vary drastically from day to day. Current methods of measuring annual average PM₂.₅, whi...