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Kontides on a golden mission as sailing starts at Enoshima at Tokyo 2020
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Lessons from the 2021 Amazon flood (commentary)
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Benoît de Froidmont s Wally 60 Wallyño © IMA / Studio Borlenghi
Italy s premier offshore race, the Rolex Giraglia sets sail tomorrow (Wednesday 16th June), the fourth event in the International Maxi Association s 2020-21 Mediterranean Maxi Offshore Challenge.
Due to the pandemic, the event s organiser, Yacht Club Italiano, has been forced for the first time to keep the start and finish within Italy. As a result the start will be from Sanremo, the course heading for a mark at Cala del Forte off Ventimiglia, then into French waters to a turning mark off the Rade d Agay (east of Frejus/Saint-Raphaël). From there the normal course resumes heading to the Giraglia Rock off northern Corsica and on to the finish off Genoa.
ksuadminFebruary 21, 2021 48
I have found for myself here that a substantial part of the effects of a scientific concept can be traced back to the way in which it is baptized. Although Greek and Latin roots are still widely used for this purpose (nothing against Rome and Hellas, on the contrary), terms in the current language seem much more memorable and clear to me than the ones I have just learned: “Sandwich effect “. Incidentally, with trees in the filling of the snack.
In fact, such a sandwich effect is not appetizing. He describes the billiard pool where certain trees are found that are adapted to seasonal flooding in the Amazon basin and that were affected by the construction of the Balbina hydropower plant from the 1980s. These trees stand before the worst of all possible worlds today – and serve as a warning to what can it do in other parts of the Amazon in front of the great energy companies that are always popular with those in power, regardless of the ideolo
Credit: Roel Brienen
For the first time scientists have provided clear evidence that tropical tree lifespan decreases above a critical temperature threshold.
Findings, published today (14 December) in the journal
PNAS (Proceedings of the National Academy of Sciences) show that across the tropics, tree lifespans decrease for temperatures above 25 C.
As temperatures are rising rapidly across large parts of the tropics, tree mortality is likely to accelerate in substantial parts of the tropics, including the Amazon, Pantanal and Atlantic forests with implications for animal habitats, air quality and carbon stocks.
Although tropical rainforests account for only 7% of all land, they are home to about 50% of all animal and plant species, and approximately 50 % of forest carbon stocks on earth. Thus small changes in the functioning of tropical forests can significantly change the atmospheric levels of CO2 - the most important anthropogenic greenhouse gas.
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