Friday, 14 June 2019

No evidence for increased egg predation in the Arctic

Climate and ecosystems are changing, but predation on shorebird nests has changed little around the globe over the past 60 years, according to a study by an international team of 60 researchers. The study, published in Science on 14 June 2019, challenges a recent claim that shorebird eggs are more often eaten by predators due to climate change, and more so in the Arctic compared to the tropics. The research shows that these claims are a methodological artefact.

* This article was originally published here

Empirical energy consumption model quantifies Bitcoin's carbon footprint

Researchers have conducted the first analysis of Bitcoin power consumption based on empirical data from IPO filings and localization of IP addresses. They found that the cryptocurrency's carbon emissions measure up to those of Kansas City—or a small nation. The study, published June 12 in the journal Joule, suggests that cryptocurrencies contribute to global carbon emissions, an issue that must be considered in climate change mitigation efforts.

* This article was originally published here