DiaMondaine Diamantaires Club mulls diamond safari tours in southern Africa

DiaMondaine Diamantaires Club (DDC) is set to organise diamond safari tours in southern Africa, home to major diamond-producing countries. DDC founder Agnes Abdulahu told Rough&Polished’s Mathew Nyaungwa that the launch of the first diamond safari...

15 july 2024

Vladislav Zhdanov: Questions of efficiency and investment potential of diamond mining versus diamond growing pique keen interest

Vladislav Zhdanov is Professor at the National Research University Higher School of Economics (HSE). He told Rough&Polished about new researches into the effectiveness of diamond production methods.

02 july 2024

Why it's expensive to cut and polish diamonds in Africa? ADMA president António Oliveira has the answer

The African Diamond Manufacturers Association (ADMA) president António Oliveira told Rough&Polished’s Mathew Nyaungwa in an exclusive interview that the lack of a robust infrastructure in Africa fails to accelerate and encourage manufacturing...

24 june 2024

Edahn Golan: IPO feasible but not Anglo’s preferred way to sell De Beers

Edahn Golan, owner of the eponymous Edahn Golan Diamond Research and Data, told Rough&Polished's Mathew Nyaungwa in an exclusive interview that while an IPO of De Beers is “feasible,"  he does not think this is a route Anglo American...

17 june 2024

GemsCouture- avant-garde by Victor Moiseikin

Jewelry items and precious souvenirs of the MOISEIKIN jewelry brand are in the museums and private collections of world celebrities, representatives of the political and cultural elite - from Xi Jinping to the British Windsors, from Angela Merkel to...

05 june 2024

Russian scientist reports underwater methane explosions in the Arctic

18 january 2024

Doctor of Geographical Sciences, member of the Russian Academy of Sciences Igor Semiletov shared important discoveries that were made as a result of extensive Arctic research.

One of the main directions in the study is the role of methane emissions and the danger associated with this gas, especially in terms of permafrost melting. During the research that is being held since the early 2000s, scientists have confirmed that the permafrost on the shelf is a source of massive methane emissions.

Scientists have documented more than 2,000 large areas of methane release into the water and atmosphere in the region, while in 2022 two new craters were identified in the Kara Sea, which were formed as a result of explosions of underground gas reservoirs.

According to the expert, such explosions occur when solid gas hydrates, molecular compounds of water and methane are heated, which persist at low temperatures and high pressure. When the temperature rises, the destruction of gas hydrates and subsequent methane emissions occur.

Despite the fact that carbon dioxide is considered to be the main threat to the planet, methane is also considered a greenhouse gas and it has more activity than carbon dioxide, csn-tv.ru writes.

Alex Shishlo for Rough&Polished