Thursday, March 16, 2023

Over 100 mature trees cut down overnight in Plymouth!

‘A disgrace’: more than 100 trees cut down in Plymouth despite local opposition

Scores of trees destroyed in hours on Tuesday despite petition signed by 16,000 people

More than 100 mature trees have been cut down in the centre of Plymouth in a move campaigners said was reminiscent of the needless felling of thousands of trees in Sheffield.

Despite widespread opposition from local people, the Conservative council in the Devon city cordoned off the trees with metal fencing, sent in security guards and in the cover of darkness on Tuesday night, destroyed more than 100 with chainsaws over a few hours.

The move came within days of a highly critical report on the needless destruction of trees by Sheffield city council – known as the “chainsaw massacre”. An inquiry report found the council was guilty of “a serious and sustained failure of strategic leadership”.

Sunday, March 5, 2023

Antarctic ice disappearing!

‘Everyone should be concerned’: Antarctic sea ice reaches lowest levels ever recorded


With the continent holding enough ice to raise sea levels by many metres if it was to melt, polar scientists are scrambling for answers

For 44 years, satellites have helped scientists track how much ice is floating on the ocean around Antarctica’s 18,000km coastline.

The continent’s fringing waters witness a massive shift each year, with sea ice peaking at about 18m sq km each September before dropping to just above 2m sq km by February.

But across those four decades of satellite observations, there has never been less ice around the continent than there was last week.

“By the end of January we could tell it was only a matter of time. It wasn’t even a close run thing,” says Dr Will Hobbs, an Antarctic sea ice expert at the University of Tasmania with the Australian Antarctic Program Partnership.

Map of Antarctica showing the duration in days of sea ice around the continent between February 2022 and February 2023 compared with the long-term average between 1981/82 and 2010/11. Red shows areas where ice was absent for longer than usual, and blue shows were ice was present for longer.
Map of Antarctica showing the duration in days of sea ice around the continent between February 2022 and February 2023 compared with the long-term average between 1981/82 and 2010/11. Red shows areas where ice was absent for longer than usual, and blue shows were ice was present for longer. Photograph: Dr Phil Reid, Bureau of Meteorology, Hobart: Data: Nasa

“We are seeing less ice everywhere. It’s a circumpolar event.”

In the southern hemisphere summer of 2022, the amount of sea ice dropped to 1.92m sq km on 25 February – an all-time low based on satellite observations that started in 1979.

But by 12 February this year, the 2022 record had already been broken. The ice kept melting, reaching a new record low of 1.79m sq km on 25 February and beating the previous record by 136,000 sq km – an area double the size of Tasmania.

In the southern hemisphere’s spring, strong winds over western Antarctica buffeted the ice. At the same time, Hobbs says large areas in the west of the continent had barely recovered from the previous year’s losses.

“Because sea ice is so reflective, it’s hard to melt from sunlight. But if you get open water behind it, that can melt the ice from underneath,” says Hobbs.

Hobbs and other scientists said the new record – the third time it’s been broken in six years – has started a scramble for answers among polar scientists.

The fate of Antarctica – especially the ice on land – is important because the continent holds enough ice to raise sea levels by many metres if it was to melt.

While melting sea ice does not directly raise sea levels because it is already floating on water, several scientists told the Guardian of knock-on effects that can.

Sea ice helps to buffer the effect of storms on ice attached to the coast. If it starts to disappear for longer, the increased wave action can weaken those floating ice shelves that themselves stabilise the massive ice sheets and glaciers behind them on the land.

One major area of concern is a marked loss of ice around the Amundsen and Bellinghausen seas on the continent’s west.

Even as the average amount of sea ice around the continent grew up to 2014, these two neighbouring seas saw losses.

That’s important because the region is home to the vulnerable Thwaites glacier – known as the “doomsday glacier” because it holds enough water to raise sea levels by half a metre.

“We don’t want to lose sea ice where there are these vulnerable ice shelves and, behind them, the ice sheets,” Prof Matt England, an oceanographer and climate scientist at the University of New South Wales, says.

“We are probably starting to see signs of significant warming and retreat of sea ice [in Antarctica]. To see it getting to these levels is definitely a concern because we have these potentially amplifying feedbacks.”

Data provided by scientists Dr Rob Massom, of the Australian Antarctic Division, and Dr Phil Reid, of the Bureau of Meteorology, shows two-thirds of the continent’s coastline was exposed to open water last month – well above the long-term average of about 50%.

“It’s not just the extent of the ice, but also the duration of the coverage,” Massom says. “If the sea ice is removed, you expose floating ice margins to waves that can flex them and increase the probability of those ice shelves calving. That then allows more grounded ice into the ocean.”

Massom and Reid published a study last year that found that, since 1979, the Amundsen Sea region was seeing longer periods without ice and more of the coastline was being exposed to open ocean conditions.

Dr Ted Scambos is a sea ice expert at the University of Colorado Boulder who also works on Antarctic sea ice at the university’s National Snow and Ice Data Center – a world centre for monitoring ice at the poles.

He said the downturn in sea ice in Antarctica “is causing the scientific community to wonder if there’s a process that’s related to global climate change”.

Antarctica is hard to study not just because of its remoteness, but in the challenges of gathering data around a continent exposed to huge variations in wind and storms from all sides.

Scambos said: “Since 2016 there has been a fairly sharp downturn [in sea ice] and especially with these back-to-back record years as well as many months being at near record lows, it’s causing the scientific community to wonder if there’s a process related to global climate change.”

He said while the most recent record could be related partly to a La Nina climate system that tends to deliver warmer winds to the continent’s peninsular, that didn’t explain the losses in other areas.

“We’re still trying to get to grips with what’s different now,” he says. “But it’s clear that reduced sea ice will have an impact. It’s going to have an impact on the continental ice because so much of the coast will be exposed.”

For many years Antarctica had seemingly been confounding some climate models as sea ice had – on average – slightly increased until a crash in 2016.

Dr Ariaan Purich, a climate scientist at Monash University, looked at why the sea ice didn’t behave as some expected.

She said it was likely caused by changing winds and, counterintuitively, meltwater from the land entering the ocean that made it easier for ice to form.

One study suggested that a warming ocean had also contributed to the sudden 2016 drop in sea ice.

“All the models project that as the climate warms, we expect to see [Antarctic sea ice] decline,” she says. “There’s widespread consensus on that. So this low sea ice is consistent with what the climate models show.”

Antarctic scientists are now scrambling to work out what’s happening. Are the drops in sea ice and the back-to-back record lows just a natural phenomenon in a continent notoriously difficult to study? Or are these records another clear sign the climate crisis is beating down on the frozen continent?

“Antarctica might seem remote but changes around there can affect the global climate and the melting ice sheets affect coastal communities around the world,” says Purich.

“Everyone should be concerned about what’s happening in Antarctica.”

Saturday, March 4, 2023

Outrage at Alaska Oil Drilling plans!

Outrage as US government advances $8bn Alaska oil drilling plan

Interior department report recommends scaled-back version of ConocoPhillips’ Willow project despite Biden campaign pledge


The Biden administration has advanced a $8bn drilling project on Alaska’s north slope. The ConocoPhillips Willow project, which would be one of the largest oil and gas developments on federal territory, has drawn fierce opposition from environmentalists, who say its approval runs counter to the president’s ambitious climate goals.

An environmental assessment released by the interior department on Wednesday recommends a scaled-back version of the project ConocoPhillips originally proposed, and would produce about 600m barrels of oil over 30 years, with a peak of 180,000 barrels of crude oil a day.

Environmental groups and the Native village of Nuiqsut, which would be most affected by the project in the northernmost stretch of Alaska, have opposed the project, which they say would mark the end of a way of life for communities in the rapidly warming Arctic. It would also exacerbate air pollution problems in a region where oil and gas extraction projects are already contributing to elevated rates of asthma and other health conditions.

“Willow is a carbon bomb that cannot be allowed to explode in the Arctic,” said Karlin Nageak Itchoak, senior regional director at the non-profit Wilderness Society. Already, the Arctic has been warming almost four times faster than the rest of the world.

“Our Native villages are eroding into the sea, thawing permafrost is making infrastructure insecure, and food sources are disappearing,” Itchoak said. “And this project would just exacerbate and speed up the climate crisis in the Arctic.”

The environmental review is a final step toward approval and comes after a years-long dispute between ConocoPhillips and the government over the corporation’s right to drill on federal territory in the Arctic. Willow would be located inside the 23m-acre (93m-hectare) National Petroleum Reserve-Alaska, which is the largest tract of undisturbed public land in the United States.

After the project was first approved by the Trump administration, a federal judge reversed the decision, ruling that the environmental review was flawed.

This latest review released by the Bureau of Land Management suggests that a scaled-down Willow project would minimize the impact on vulnerable species including polar bears, yellow-billed loons and caribou, while remaining in line with the minimum ConocoPhillips has said it needs to drill to make the project profitable.

But the interior department did leave open the possibility of further scaling back or rejecting the project, with a final decision expected in a month.

Officials have “substantial concerns” about even the scaled-back plan’s impact on wildlife and Alaska Native communities, the department noted in a separate statement.

“It’s outrageous that Biden seems ready to greenlight the massively destructive Willow project, prioritizing oil industry profits over the future of polar bears and other Arctic wildlife,” said Kristen Monsell, senior attorney at the Center for Biological Diversity. “We’ll keep fighting it until it’s scrapped.”

Biden had promised during his election campaign to end federal oil and gas drilling, and transition toward renewable energy. But as oil prices rise as a consequence of the Russian invasion of Ukraine, the president has faced further pressure to increase drilling.

Alaska’s two Republican senators and the state’s sole congressional representative, a Democrat, have urged the administration to approve the project, which the say would boost the state’s economy. Some Alaska Native tribal governments organizations, including the Inupiat Community of the Arctic Slope and the Alaska Federation of Natives, have supported the project for similar reasons.

But environmental groups and tribes including those in Nuiqsut have countered that any jobs and money the project brings in the short term will be negated by the environmental devastation it will cause in the long run.

Already, Arctic communities are at the front line of global climate chaos. In December, the city of Utqiagvik, at Alaska’s northern edge, reached its warmest temperature ever observed. Elsewhere in Alaska, a record-breaking 2022 wildfire season and coastal flooding and powerful storms displaced communities along the western coast.

Increased oil and gas extraction in the region has already affected caribou populations, which several communities the area hunt for subsistence.

“This project could be a turning point for not just Alaska and the Arctic, but for the entire world,” said Siqiñiq Maupin, director for the Sovereign Inupiat for a Living Arctic, a group that opposes Willow. “It is going to possibly bring us to a place where we can’t come back from.”