जलवायु परिवर्तन – Page 4 – आवारा मुसाफिर

Alaska glaciers may hit irreversible melting point sooner than expected

July 2, 2024285 Views

Glaciers in the Juneau Icefield in southeastern Alaska are melting at a faster rate than previously thought and may reach an irreversible tipping point sooner than expected, according to a study published on Tuesday. Home to more than 1,000 glaciers, the snow covered area is now shrinking 4.6 times faster than it was in the 1980s, according to a new study. Researchers at Newcastle University in England found that glacier loss in the icefield, located just north of Alaska's capital city of Juneau, has accelerated rapidly since 2010. Glacier melt is a major contributor to rising sea levels, a threat to coastal settlements worldwide. Current rates of ice melt could result in a permanent decline of Juneau Icefield, researchers said. People walk on a frozen Mendenhall Lake, with Mende...

खबरनामाघटनाएंजलवायु परिवर्तनब्राजील

Brazil’s Pantanal wetlands face worst fires

AWARA MUSAFIR BUREAU

June 13, 2024478 Views

Fatima Brandao goes looking for her chickens in the backyard amidst a veil of smoke from the spreading fires that are engulfing the world's largest tropical wetland faster than ever before. "There never used to be smoke here. The sun shone clearly and the sky was always blue. Now the whole hill is on fire and smoke has clouded the entire area," she said. The Pantanal wetlands in central-western Brazil are home to a wide variety of animals, including jaguars, anacondas and giant anteaters. A drone view shows smoke from the fire rising into the air as trees burn amongst vegetation in the Pantanal, in Corumba, Mato Grosso do Sul state, Brazil, June 11. REUTERS/Ueslei Marcelino A shortfall of rain this year has caused the wildfire season to start earlier and become more intense th...

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‘Boiling not warming’: Marine life suffers as Thai sea temperatures hit record

AWARA MUSAFIR BUREAU

May 24, 2024490 Views

Aquatic life from coral reefs to fish along Thailand's eastern gulf coast is suffering as sea surface temperatures hit record highs this month amid a regional heatwave, worrying scientists and local communities. The once vibrant and colourful corals, about five metres (16 feet) underwater, have turned white in a phenomenon known as coral bleaching, a sign that their health was deteriorating, due to higher water temperatures, scientists say. Sommay Singsura, a fisherman, is seen close to bleached corals near Chao Lao Beach, Chantaburi province, Thailand, May 10, 2024. This year so far the country's weather recorded the highest temperature at 44.2 degrees Celsius affecting the seawater temperature as well. REUTERS/Napat Wesshasartar Sea surface temperatures in the Eastern Gulf of T...

जलवायु परिवर्तन

Hot history: Tree rings show that last northern summer was the warmest since year 1

AWARA MUSAFIR BUREAU

May 16, 2024436 Views

The broiling summer of 2023 was the hottest in the Northern Hemisphere in more than 2,000 years, a new study found. When the temperatures spiked last year, numerous weather agencies said it was the hottest month, summer and year on record. But those records only go back to 1850 at best because it’s based on thermometers. Now scientists can go back to the modern western calendar’s year 1, when the Bible says Jesus of Nazareth walked the Earth, but have found no hotter northern summer than last year’s. A study Tuesday in the journal Nature uses a well-established method and record of more than 10,000 tree rings to calculate summertime temperatures for each year since the year 1. No year came even close to last summer’s high heat, said lead author Jan Esper, a climate geographer at the...

जलवायु परिवर्तन

11 months on trot of world’s record-breaking temperatures

AWARA MUSAFIR BUREAU

May 9, 2024330 Views

The world just experienced its hottest April on record, extending an 11-month streak in which every month set a temperature record, the European Union's climate change monitoring service said on Wednesday. Each month since June 2023 has ranked as the planet's hottest on record, compared with the corresponding month in previous years, the Copernicus Climate Change Service (C3S) said in a monthly bulletin. People walk as water is sprayed by a system to alleviate the high temperatures caused by a heat wave, at the Gerardo Barrios square, in San Salvador, El Salvador, March 27, 2024. REUTERS/Jose Cabezas Including April, the world's average temperature was the highest on record for a 12-month period - 1.61 degrees Celsius above the average in the 1850-1900 pre-industrial period. S...

चीनजलवायु परिवर्तन

Nearly half of China’s major cities are sinking — some ‘rapidly’

AWARA MUSAFIR BUREAU

April 20, 2024491 Views

Tens of millions of people in the country’s coastal lands might find their homes below sea level by 2120 owing to sinking and sea-level rise One in ten residents of China’s coastal cities could be living below sea level within a century, as a result of land subsidence and climate change, according to a paper published in Science. Some 16% of the mapped area of China’s major cities is sinking “rapidly” — faster than 10 millimetres every year. An even greater area, roughly 45%, is sinking at a “moderate” rate, the paper says, meaning a downward trajectory of greater than 3 mm annually. Affected cities include the capital Beijing, as well as regional capitals, including Fuzhou, Hefei and Xi’an. The situation could see one-quarter of China’s coastal lands slip below sea level within ...

जलवायु परिवर्तन

Coral reefs around the world are experiencing mass bleaching in warming oceans

AWARA MUSAFIR BUREAU

April 16, 2024473 Views

Huge stretches of coral reef around the world are turning a ghostly white this year amid record warm ocean temperatures. Coral reefs around the world are experiencing global bleaching for the fourth time, top reef scientists declared Monday, a result of warming ocean waters amid human-caused climate change. On Monday, the U.S. National Oceanic and Atmospheric Administration confirmed the world's fourth mass global bleaching event is underway - with serious consequences for marine life and for the people and economies that rely on reefs. Coral reef bleaching across at least 53 countries, territories or local economies has been confirmed from February 2023 to now, scientists from the National Oceanic and Atmospheric Administration and International Coral Reef Initiative said. It ...

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March marks yet another record in global heat

AWARA MUSAFIR BUREAU

April 10, 2024510 Views

The world just experienced its warmest March on record, capping a 10-month streak in which every month set a new temperature record, the European Union's climate change monitoring service said on Tuesday. Each of the last 10 months ranked as the world's hottest on record, compared with the corresponding month in previous years, the EU's Copernicus Climate Change Service (C3S) said in a monthly bulletin. The 12 months ending with March also ranked as the planet's hottest ever recorded 12-month period, C3S said. From April 2023 to March 2024, the global average temperature was 1.58 degrees Celsius above the average in the 1850-1900 pre-industrial period. File Photo: A woman protects herself from the sun with an umbrella during a heatwave in the centre of Sao Paulo, Brazil March 15,...

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Climate change has slowed Earth’s rotation — and could affect how we keep time

AWARA MUSAFIR BUREAU

March 30, 2024620 Views

The effect of melting polar ice could delay the need for a ‘leap second’ by three years Climate change is starting to alter how humans keep time. An analysis published in Nature on 27 March has predicted that melting ice caps are slowing Earth’s rotation to such an extent that the next leap second — the mechanism used since 1972 to reconcile official time from atomic clocks with that based on Earth’s unstable speed of rotation — will be delayed by three years. “Enough ice has melted to move sea level enough that we can actually see the rate of the Earth’s rotation has been affected,” says Duncan Agnew, a geophysicist at the Scripps Institution of Oceanography in La Jolla, California, and author of the study. FILE PHOTO: Glacial ice from the Greenland Ice Sheet flows around mou...

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Australian scientists find coral bleaching in Great Barrier Reef’s far north

AWARA MUSAFIR BUREAU

March 15, 2024522 Views

Australian researchers have found coral bleaching around six islands in the far northern parts of the Great Barrier Reef, after a government agency said last week a major bleaching event was unfolding across the world's most extensive reef ecosystem. Scientists at the James Cook University said on Friday they found only a few relatively healthy areas, mostly in deeper waters, after surveying sites at the Turtle Group National Park, about 10 km (6.2 miles) offshore the state of Queensland. "It was quite devastating to see just how much bleaching there was, particularly in the shallows ... (but) they were all still at the stage of bleaching where they could still recover as long as the water temperatures decline in time," lead researcher Maya Srinivasan told Reuters. Bleaching ...