Angela Merkel's government agrees to cut CO2 emissions faster, but protesters say it is not enough.
Pavel Ustinov's jail term sparked widespread anger after video suggested he was set upon by police.
Both sides promise to look for an agreement ahead of 31 October, following a meeting in Brussels.
The fisherman was one of six injured while resisting arrest, a Russian border official says.
Rui Pinto is accused of illegally publishing confidential files belonging to leading football clubs.
Germany will embed its Polarstern research ship in sea-ice for a year-long study of the climate.
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