Rare Bermuda petrels feed their chick


This video from Bermuda says about itself:

1-Week-Old Cahow Chick Gets Fed By Parent In Nesting Burrow – March 6, 2020

The 1-week-old cahow chick reunited with one of its parents last night for a long, 6-hour bout of feeding, cuddling, and “nestorations”. Watch highlights from the adult’s visit in this clip from CahowCam1.

Coronavirus worldwide news


This 7 March 2020 ABC TV video from the USA is called At least 12 dead, 188 infected in US as coronavirus continues to spread.

What you need to know about coronavirus testing in the U.S: here.

USA: NURSES BLAST GOVERNMENT, HOSPITAL READINESS FOR VIRUS Members of the union National Nurses United said they have faced shifting guidelines and a shortage of supplies as the tally of known coronavirus infections has increased. They called on the Centers for Disease Control to quickly increase testing for COVID-19 and demanded that federal officials implement emergency standards for hospitals and clinics around the country. [HuffPost]

World Health Organization warns of need for urgent response as coronavirus cases surpass 100,000: here.

European states dither on emergency response as coronavirus spreads globally: here.

Coronavirus spreads to Poland, threatening to upend presidential elections: here.

A dog in Hong Kong has a low-level infection of the new coronavirus: here.

Call a pandemic a pandemic: ‘pandemic bonds’ and how casino capitalism is endangering us all. A cynical desire to save money is the reason why governments are refusing to say how serious the coronavirus crisis really is, explains ALAN SIMPSON.

Sharks and whales, video


This 3 March 2020 video says about itself:

A Deep Dive Into the Lives of Sharks and Whales

Join us for a deep dive into the world of sharks and orcas. In this reel, we meet people who study, swim with and photograph these fascinating mammals, from the warm waters of Bimini to the frigid Arctic Ocean.

Australian wildfires, climate change wildfires


This 15 January 2020 video says about itself:

Australia fires: Climate change increases the risk of wildfires – BBC News

UK scientists say the recent fires in Australia are a taste of what the world will experience as temperatures rise.

Prof Richard Betts from the Met Office Hadley Centre said we are “seeing a sign of what would be normal conditions under a future warming world of 3C”.

While natural weather patterns have driven recent fires, researchers said it’s “common sense” that human-induced heating is playing a role.

Last year was Australia’s warmest and driest year on record.

UK researchers have carried out a rapid analysis of the impact of climate change on the risk of wildfires happening all over the world. Their study looked at 57 research papers published since the last major review of climate science came out in 2013.

By Carolyn Gramling, March 4, 2020 at 12:39 pm:

Australia’s wildfires have now been linked to climate change

Climate-influenced temperatures raised the wildfire risk by 30 percent

Human-caused climate change made southeastern Australia’s devastating wildfires during 2019–2020 at least 30 percent more likely to occur, researchers report in a new study published online March 4.

A prolonged heatwave that baked the country in 2019-2020 was the primary factor raising the fire risk, said climate scientist Geert Jan van Oldenborgh, with the Royal Netherlands Meteorological Institute in De Bilt. The study also linked the extremity of that heatwave to climate change, van Oldenborgh said March 3 during a news conference to explain the findings. Such an intense heatwave in the region is about 10 times more likely now than it was in 1900, the study found.

Van Oldenborgh also noted that climate simulations tend to underestimate the severity of such heatwaves, suggesting that climate change may be responsible for even more of the region’s high fire risk. “We put the lower boundary at 30 percent, but it could well be much, much more,” he said.

This week, the southeastern Australia region was declared free of wildfires for the first time in over 240 days, according to a statement March 2 by the New South Wales Rural Fire Service on Twitter. The fires have burned through an estimated 11 million hectares, killing at least 34 people and destroying about 6,000 buildings since early July. About 1.5 billion animals also died in the blazes. Researchers are still tallying the damage and assessing the potential for recovery for many native plant and animal species (SN: 2/11/20).

The climate attribution study was conducted by the World Weather Attribution group, an international consortium of researchers who investigate how much of a role climate change might be playing in natural disasters. Given the quick turnaround time, the study has not yet been peer-reviewed. “We wanted to bring the scientific evidence [forward] at a time when the public is talking about the event,” said climate modeler Friederike Otto of the University of Oxford. Then the group examined how climate change altered the Fire Weather Index, an estimation of the risk of wildfires.

The climate simulations show that the probability of a high Fire Weather Index during the 2019–2020 season increased by at least 30 percent, relative to the fire risk in 1910. That is primarily due to the increase in extreme heat; the study was not able to determine the impact of climate change on extreme drought conditions, which also helped fuel the blazes.

Researchers previously have suggested that an El Niño-like atmosphere-ocean weather pattern known as the Indian Ocean Dipole, which was in a strong positive phase in 2019, may have played a role in exacerbating the dry conditions (SN: 1/9/20). Global warming may make such extreme positive phases of this pattern more common. The new study confirmed that the 2019 positive phase made drought conditions more extreme, but could not confirm this particular phase’s relationship to climate change.

“It is always rather difficult to attribute an individual event to climate change,” but this study is nicely done, says Wenju Cai, a climate scientist at CSIRO who is based in Melbourne, Australia. The link identified to climate change is reasonable, if not particularly surprising, he says.

The year 2019 was Australia’s hottest and driest since modern recordkeeping began in the country in 1910. Summers Down Under also appear to be lengthening: The Australia Institute, a Canberra-based think tank, released a report March 2 that found that Australian summers during the years 1999 to 2018 lasted longer by a month, on average, than they did 50 years ago.

Temperature observations going back to 1910 show that the region’s temperatures have risen by about 2 degrees Celsius on average, van Oldenborgh and colleagues report. The climate simulations underrepresented that warming, however, showing an increase of only 1 degree Celsius in that time.

Climate modelers previously have struggled to reconcile the disparity between recorded temperatures and simulated heatwaves: Simulations tend to underestimate the severity of the extreme events. The team noticed a similar underestimation in its simulations of the 2019 heat waves in Europe (SN: 7/2/19). Conditions not generally factored into regional climate simulations, such as land-use changes, may be responsible for the disparity. Changes in vegetation cover, for example, can have an impact on how hot or dry a region gets.

New international research has found a worrying change in the Indian Ocean’s surface temperatures that puts southeast Australia on course for increasingly hot and dry conditions: here.

How scientists wrestle with grief over climate change. Those who study nature are dealing with frustration and sadness over what’s being lost: here.