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121 notícias encontradas para "levels"
Rising seas make once-rare coastal floods 12 times more likely
Extreme floods that once swamped coastal communities only rarely are becoming far more common as climate change caused by humans pushes sea levels higher, according to new research published Wednesday. Experts say the findings are crucial for making plans about floods and coastal
Why Antarctica froze millions of years before the Arctic
East Antarctica hosts the largest ice sheet on Earth, containing enough water to raise global sea levels by 52 meters (171 feet) were it to fully melt. Yet scientists have been puzzled for decades about how and why this ice sheet formed.
Record fireworks display choked Washington in toxic smoke
Record fireworks display choked Washington in toxic smoke
The U.S. capital, Washington, saw its worst air quality of the year over the July 4 weekend, as smoke from a massive fireworks display sent pollution soaring to levels considered very unhealthy for the entire public, data showed Monday.
Reinventing pediatric dental training in Singapore
Managing pediatric dental patients can be stressful for dental students and inexperienced practitioners, particularly when communicating with fearful and uncooperative children. Previous studies found that dental students experience three times the stress levels of seasoned speci
Study examines Miami-Dade County resilience plans
Study examines Miami-Dade County resilience plans
A University of Miami study has developed a new approach to evaluate how multiple climate resilience plans work together—or fail to do so—in addressing the growing risks posed by climate-related hazards. The researchers analyzed 37 resilience plans developed at the regional, coun
UK waters hit with extreme heatwave as global sea temperatures reach record levels
Experts warn that some marine species are at risk of ‘mass mortality events’ in ever-warming oceansUK waters are being hit with an “extreme” marine heatwave, the Met Office has said, as scientists warn that high ocean temperatures globally could result in “mass-mortality events”
Is male testosterone in freefall? – podcast
Men’s average testosterone levels have halved over the past 50 years, according to scientists who say society is facing a male fertility crisis. Rising levels of obesity and diabetes are expected to play a part, but the team behind the work suggest that environmental factors such
Falling water levels trigger a surge in methane emissions from Mediterranean reservoirs
Continental aquatic ecosystems, such as lakes and reservoirs, occupy a small proportion of Earth's surface but play a significant role in the global carbon cycle. It is estimated that more than 40% of global methane emissions originate from these ecosystems. However, the true sca
Harmful ozone may have reached two-thirds of EU residents during record June heat wave
Two-thirds of the European Union's population may have been exposed to harmful levels of ozone pollution during last month's record-breaking heat wave, a report exclusively shared with AFP warned Thursday.
Rising tides, rising tensions: New research calls for rethink of coastal law
As sea levels rise and coastlines erode, Australia's legal system is struggling to keep up. Longstanding assumptions about who owns the coast—and who should pay when it disappears—are now at the center of growing disputes.
‘Spermageddon’: is the world facing a male reproductive crisis?
Reports of falling sperm counts and testosterone levels have fuelled fears over chemicals, pollution and modern lifestyles. But how much do scientists agree on what is affecting male fertility?The world is unwittingly walking into a male reproductive crisis, scientists warned thi
Could permanent magnets protect astronauts from solar storms?
Could permanent magnets protect astronauts from solar storms?
Shielding astronauts from the deadly radiation they face is a central challenge for any designer of a deep-space crewed mission. Even relatively low levels of exposure over long periods can lead to everything from central nervous system damage to cancer. But current solutions, su