Navalny's probe into a Black Sea palace Russian tycoons allegedly built for Putin has racked up more than 116 million views on YouTube since its release in January. Putin denies the palace is his.
The short but intense falling out between two heavyweights in the 13-member cartel of oil-producing nations and its 10 affiliates threatened world crude storage capacity levels with cheap oil.
But the speech threatens to be overshadowed by country-wide demonstrations called by Navalny's supporters, who fear the life of Putin's best-known critic is in grave danger.
France's foreign minister Jean-Yves Le Drian warned Sunday those sanctions could be expanded, saying Russia must be held "responsible" for the dissident's health.
There is a strong push in the United States to cripple the project with sanctions and prevent its completion, out of fear that it will give Moscow a dangerous grip on the energy supplies of US allies in Europe.
The Ukrainian military on Thursday announced that another of its soldiers had been killed, bringing to 25 the number of troops killed since the start of the year, compared with 50 in all of 2020.
Largely ignoring moves in prices for oil, Russia's key export, the rouble was 0.2% stronger at 76.87 against the dollar at 0530 GMT, having hit on Wednesday its weakest level since Nov. 5 of 78.0450.
Politkovskaya, who spent years reporting for Novaya Gazeta on rights abuses and the Kremlin's war in the North Caucasus region of Chechnya, was shot dead outside her apartment in 2006 at the age of 48.
"Every year the plan will be to replace all wheeled public transport vehicles with electric buses," said Artyom Burlakov, deputy head of the innovative projects department at Mosgortrans.
They are also buying new, more power-efficient trams, which is a good thing.
"Authorities have nothing to offer to those who are unhappy over their policies," he added, pointing to "ostentatious wealth" of the Russian elites and growing divisions in society.