How well will we protect the Greenland ice sheet from the consequences of global warming if we do nothing soon? A comment on Bochow and Petrini

The researchers used two climate models to assess how the Greenland ice sheet would respond to a variety of scenarios. The worst impacts of warming can be avoided if warming is kept under 2.5 C.

He and others think that it will be much cheaper and easier to take action against the global warming than it will be later. Bochow says that the bet is against time if we don’t do anything soon. “It gets only harder the longer we wait.”

June, July, August and September 2023 all saw record high global temperatures, and 2023 is likely to be the hottest year for which data exist. Against this backdrop, Bochow and his colleagues wanted to look at what would happen if humanity overshot the 1.5 °C temperature target, even by a lot, and then managed to cool things down again.

“It’s a worthwhile tool to explore because what we are doing so far, policy wise, is not enough to be within the limits,” says Michele Petrini, an Earth-system scientist at the NORCE Norwegian Research Centre and Bjerknes Centre for Climate Research in Bergen.

Anti-CRISPRs protect viruses by mimicking a part of a CRISPR-Cas system in RNA: Discovering Thyra’s Queen and a Puffed-Up Exoplane

The genome of an invading viruses is often identified and destroyed by the CRISPR-Cas systems. Countermeasures known as anti-CRISPRs can be deployed to counteract host defences. This week, a team describe a new kind of anti-CRISPR system, based on RNA, which protects viruses by mimicking part of the CRISPR-Cas system. The researchers hope that this discovery could have future biotechnology applications, including making CRISPR-Cas genome editing more precise.

Carved inscriptions suggest a queen named Thyra was the most powerful person in Viking-age Denmark, and the discovery of a puffed-up exoplanet that has just 1.5% the density of Earth.

Over 200 ecologists get wildly-divergingresults from the same data, which show how melting lunar-dust with lasers could pave the Moon.

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