Environment

Mars rover sees hints of past life in latest rock samples

NASA's Perseverance Mars rover has detected its highest concentrations yet of organic molecules, in a potential signal of ancient microbes that scientists are eager to confirm when the rock samples are eventually brought to Earth.. "It is very fair to say that these are going to be, these already are, the most valuable rock samples that have ever been collected," David Shuster, a Perseverance return sample scientist, told reporters during a briefing.

Kerry urges rich-poor unity on climate effort ahead of UN talks

US climate envoy John Kerry on Thursday urged African countries to help overcome divisions between rich and poor nations at the upcoming UN COP27 talks.. On Wednesday, a bloc of the world's poorest countries said they would urge COP27 to push ahead with another envisioned area of climate finance -- a fund to compensate vulnerable nations for damage such as floods and rising seas.

Poorest nations to push on compensation at climate talks

The world's poorest countries say they will insist that the UN's upcoming climate talks push ahead with proposals for a fund to compensate vulnerable nations for climate-inflicted damage.. The LDC bloc, gathering countries mainly from Africa and Asia, is campaigning in particular for compensation for vulnerable countries which suffer from climate-related damage such as floods and rising seas.

Shell CEO to step down, hand reins to renewables chief

Shell on Thursday announced the exit of chief executive Ben van Beurden as the British oil and gas giant looks to reinvent itself under group renewables boss Wael Sawan.. This even as van Beurden carried out Shell's costly withdrawal from Russian gas and oil.

Ethereum blockchain completes 'monumental' overhaul

Senior figures in the crypto world said on Thursday that one of the biggest software upgrades the sector has ever seen was completed, an overhaul of the Ethereum blockchain aimed at reducing its massive energy consumption.. Buterin quoted research claiming that the "merge", as developers have called the software upgrade, would reduce global energy consumption by 0.2 percent.

Typhoon Muifa lashes eastern China, forcing 1.6 million from their homes

High winds and heavy rain lashed China's densely populated east coast on Thursday, after Typhoon Muifa forced around 1.6 million people to leave their homes and grounded most flights at Shanghai's main airports.. Muifa is the strongest tropical cyclone to hit Shanghai -- home to more than 25 million people -- since record-keeping began in 1949, state broadcaster CCTV said.

All Shanghai passenger flights cancelled as typhoon hits

All passenger flights at Shanghai's two international airports were cancelled Wednesday, the airport operator said, as Typhoon Muifa made landfall on China's densely populated east coast.. The highest wind speed recorded on landfall was 42 metres per second, making it the strongest typhoon to make landfall in China this year, according to state broadcaster CCTV. China's Central Meteorological Administration issued its highest-level typhoon alert for the first time this year, saying Muifa would increase in intensity as it approaches the coast.

Shy male albatrosses prefer divorce to confrontation: study

Most albatrosses mate for life but shy males who avoid confrontation are more likely to get dumped, researchers said Wednesday, adding it was the first time personality had been shown to predict divorce in a wild animal.. That is when the shyer males avoid confrontation -- and accept divorce.

Health groups calls for fossil fuel non-proliferation treaty

Around 200 health organisations and more than 1,400 health professionals on Wednesday called for governments to establish a binding international treaty on phasing out fossil fuels, which they said pose "a grave and escalating threat to human health".. The WHO was among the health organisations from around the world who signed the letter.