Tree rings show scale of Arctic pollution is worse than previously thought — ScienceDaily

The largest-ever study of tree rings from Norilsk in the Russian Arctic has shown that the direct and indirect effects of industrial pollution in the region and beyond are far worse than previously thought.

An international team of researchers, led by the University of Cambridge, has combined ring width and wood chemistry measurements from living and dead trees with soil characteristics and computer modelling to show that the damage done by decades of nickel and copper mining has not only devastated local environments, but also affected the global carbon cycle.

The extent of damage done to the boreal forest, the largest land biome on Earth, can be seen in the annual growth rings of trees near Norilsk where die off has spread up to 100 kilometres. The results are reported in the journal Ecology Letters.

Norilsk, in northern Siberia, is the world’s northernmost city with more than 100,000 people,

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Ring’s latest security camera is a drone that flies around inside your house

Ring latest home security camera is taking flight — literally. The new Always Home Cam is an autonomous drone that can fly around inside your home to give you a perspective of any room you want when you’re not home. Once it’s done flying, the Always Home Cam returns to its dock to charge its battery. It is expected to cost $249.99 when it starts shipping next year.

Jamie Siminoff, Ring’s founder and “chief inventor,” says the idea behind the Always Home Cam is to provide multiple viewpoints throughout the home without requiring the use of multiple cameras. In an interview ahead of the announcement, he said the company has spent the past two years on focused development of the device, and that it is an “obvious product that is very hard to build.” Thanks to advancements in drone technology, the company is able to make a product like this

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Ring’s new Always Home Cam is a flying drone camera for inside your house

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Ring

Ring on Thursday introduced a new product to its growing lineup of smart home devices — the Ring Always Home Cam. Different from the Amazon company’s other home security cameras, the Always Home Cam is a flying camera drone that docks when it isn’t in use. The Ring Always Home Cam will be available in 2021 and will cost $250. 

Along with this hardware announcement, Ring says you’ll be able to turn on end-to-end encryption in the Ring app’s Control Center “later this year” in an effort to improve the security of its devices. 

A bit of Ring history

Before Ring was Ring, it was a startup called Bot Home Automation. Bot Home’s inaugural product, the 2014 Doorbot, was among the first video doorbells on the market. Unfortunately, it had a lot of problems — clunky design, limited features and poor performance. Then Bot Home rebranded to Ring,

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