News
Arctic sea ice is melting faster than ever: Study
A recent study from the National Centre for Polar and Ocean Research (NCPOR) in Goa has pointed out that Arctic sea ice is melting at an alarming rate, especially during the boreal or northern hemisphere summer.
The study, published in the journal Heliyon, highlighted the increasing decline of the Arctic sea ice due to climate change. It reported that September sea ice declined to its lowest extent of 4.71 million square kilometeres in 2018, its lowest in the past four decades.
The study to measure the extent of Arctic sea ice loss was led by Avinash Kumar and his team of scientists comprising Juhi Yadav and Rahul Mohan from NCPOR.
“The minimum extent of seasonal sea ice for 2018 was recorded between September 19 and 23. Prior to September 19, 2018, sea ice extent had declined at a rate of nearly 14,000 square kilometres per day that was significantly faster than in most previous years,” Kumar observed.
The study also showed that the September of 2018 was the third warmest on record, with temperature differences of the air above the Arctic Ocean (~3.5°C) to be slightly higher than that of the Arctic land (~2.8°C).
The decline in sea ice can lead to accelerated global warming and climate changes. “The faster loss of sea-ice for the whole Arctic Ocean during September demonstrates that there are substantial variations in surface air temperature and there is a correspondence between the fluctuations in surface air temperature in the Arctic and global regions,” Kumar added.
The Arctic is warming twice as fast as the rest of the globe, a phenomenon known as arctic amplification. Arctic sea ice loss is attributed to several factors such as rising global temperatures. The study suggests that due to more open seas in winters, the growth of sea ice is delayed, leading to disproportionate loss of sea ice occurring during summer.
For the study, researchers obtained data of Arctic ice extent, thickness, and volume from 1979-2018 from globally-available satellite data and applied modelling techniques. They also studied its correlations with atmospheric and surface temperatures and sea pressure.
As a result, they were able to see how ice in the Arctic region has changed over the last four decades. It also helped them to predict the possible sea ice scenario in the coming years. The group is now planning to expand their work to study how sea ice melting and intrusion of warm ocean waters are related. (India Science Wire)
News
No PC polls this year, says Tilvin
The much-delayed Provincial Council (PC) elections cannot be held this year due to financial and legal constraints, JVP General Secretary Tilvin Silva has said in Jaffna.Silva said so, fielding questions from journalists after the opening of the NPP coordination office in the Jaffna District on Saturday.
When asked whether the government was under Indian pressure to conduct the Provincial Council elections soon, Silva answered in the negative, claiming that Sri Lankan and Indian governments maintained close and friendly relations with a strong level of understanding.
He said budgetary allocations had been made for the PC elections, but the government had been compelled to divert resources for disaster relief following the impact of Cyclone Ditwah. According to Silva, nearly Rs. 500 billion had to be allocated for relief measures, making it difficult to hold the elections this year. He further said legal complications in the electoral reform process had also contributed to the delay in holding the PC elections, noting that a parliamentary committee had been appointed to determine the electoral systems under which the PC polls should be conducted. Once the committee submitted its report and if no further issues arose, the elections could possibly be held next year, he said.
Silva also said the government had taken measures to strengthen reconciliation and development in the North by releasing lands previously occupied by military camps and improving road infrastructure.He added that empowerment initiatives were being implemented under the Praja Shakthi programme and that both Sri Lanka and India were continuing to work in close cooperation.
News
Weather conditions worsen, displacing 31,000 people
More than 31,000 people across Sri Lanka have been affected by worsening weather conditions, as the southwest monsoon intensifies ahead of its full establishment, raising fears of renewed flooding in vulnerable low-lying areas, the Disaster Management Centre (DMC) has warned.
The DMC has said 31,072 individuals from 7,983 families have already been impacted by persistent rain, strong winds and rising water levels across multiple districts, with the situation most severe in the Gampaha District where 15,313 people from 3,950 families have been affected and one death reported.
Officials have cautioned that the scale of disruption could worsen as the southwest monsoon is expected to fully establish over the island around May 26–27, bringing heavier and more sustained rainfall to the southwestern region.
At present, 18 safety centres are in operation, sheltering 1,724 displaced persons from 446 families. One person has been injured and 859 houses have been partially damaged. Two houses have been destroyed.
The Department of Meteorology has forecast increased rainfall over the coming days, warning that conditions are likely to deteriorate further as monsoon activity strengthens.
Flood-hit areas remain widespread, with river systems still under pressure despite a brief easing in rainfall on Saturday. The Kelani River has returned to normal levels, but minor flooding persists along the Kalu River basin, particularly in the Millakanda area, where tributary water levels remain elevated.
Low-lying areas in Bellapitiya, Horana, continue to be inundated, while traffic on the Bulathsinhala–Kalutara road remains disrupted due to flooding in Diyakaduwa. Authorities have also flagged continued risk in Putupawula and Ellagawa along the Kalu River.
The Attanagalu Oya basin is also slowly receding, though residents in Dunamale have been urged to remain on alert. Several homes in Ja-Ela remain underwater, with residents alleging that delayed repairs to a damaged canal embankment worsened the flooding.
In a fresh blow to infrastructure, the Swarna Hansa Podi Ela bridge in Ja-Ela collapsed on Saturday evening, further disrupting local transport links, while the main Ja-Ela–Gampaha bus route remains submerged in parts of Yakkaduwa.
Meteorologists have warned that rainfall is expected to intensify again from May 26 to 28, when the southwest monsoon is likely to be formally declared over Sri Lanka, raising the risk of further flooding and landslides in already saturated areas.
by Norman Palihawadane and Chaminda Silva
News
Dickoya double murder suspect arrested
Police said a suspect wanted in connection with the murder of an elderly couple inside a shop in Dickoya town, Hatton, had been arrested on Saturday evening (23).
The arrest was made in the Bogawantalawa police area. Acting on a tip-off, the police arrested him while he was hiding in a house on a tea estate.
Police said stolen gold jewellery had been recovered.
Preliminary investigations revealed that the suspect, originally from Badulla, had been residing in Dickoya after his marriage.
Earlier on Saturday, Hatton Police released CCTV footage of the suspect and sought public assistance to trace and arrest him.
According to police, the suspect allegedly slit the throat of the elderly woman and killed her husband using a sharp weapon on Thursday (21) before fleeing with gold jewellery valued at around 18 sovereigns, including a necklace and earrings.
Investigations further revealed that the suspect had arrived in Dickoya town on the morning of May 21 and visited several jewellery shops claiming he intended to purchase a gold necklace, while loitering in the area.
Police said that around 1.15 pm, he entered the couple’s shop and remained concealed inside the premises before allegedly carrying out the attack.
Hatton Police added that the suspect is believed to have committed the murders and left the shop around 5.30 pm the same day before going into hiding.
by Norman Palihawadane
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