With climate change pushed down the news agenda as Germany tackles an energy crisis and the war in Ukraine, environmental activists are resorting to increasingly eye-catching stunts to get their message across.

This week, around a dozen activists sprayed a black liquid that looked like oil on the chancellery in Berlin and stood in front of the building with a banner that read: "Save oil instead of drilling."

Dressed in orange high-visibility jackets and hard hats, the protesters were members of Letzte Generation ("Last Generation") -- a radical protest group that has become the new face of environmental activism in Germany.

"The government has ignored everything else: petitions have been written, a million people have taken to the streets," said Lina Joansen, a 24-year-old student taking part in the protest.

The activists want a promise from the government that it will not drill for oil in the North Sea.

"We know that fossil fuels can only aggravate the climate catastrophe that is already happening," said law student Myriam Herrmann, 25.

Six months ago, a new coalition government was elected in Germany on a promise to make climate change one of its top priorities.

The Greens entered power for the first time in more than two decades, forming a coalition with the Social Democrats (SPD) under Chancellor Olaf Scholz and the liberal FDP.

- Ambitious climate plans -

Green party Economy Minister Robert Habeck announced an ambitious 60 billion euro ($68 billion) climate investment plan and promised that Germany would end coal power and generate 80 percent of electricity from renewables by 2030.

But since then, climate concerns have been overshadowed by the war in Ukraine, an acute energy crisis and record inflation.

Germany has accelerated plans to import liquefied natural gas (LNG) by sea, wants to explore new oil and gas reserves in the North Sea, and has even decided to reactivate mothballed coal-fired power plants.

RTL

Thousands marched in Munich Saturday, calling on G7 leaders to do more to fight climate change / © AFP

The government has said it is still on target to meet its 2030 climate targets, but the protesters are not convinced.

Herrmann is "incredibly disappointed", especially with Habeck. "We don't have time for stopgap solutions any more," she said.

Letzte Generation was born following a hunger strike last year by activists demanding a law to ban supermarkets from destroying unsold food products.

Earlier this year, small groups of Letzte Generation protesters blocked busy roads in Berlin by sitting down and glueing their hands to the tarmac. More than 100 were arrested.

A few days after the oil protest, the group once again employed these tactics, with about 65 protesters blocking the Frankfurter Tor intersection in Berlin's Friedrichshain.

- 'Legitimate means' -

Civil disobedience is "an established mode of protest in the German environmental movement", sociologist Michael Neuber told AFP, recalling the anti-nuclear movement of the 1970s and blockades by the Extinction Rebellion in 2019.

Such protests have been overshadowed over the past two to three years by the massive student-led demonstrations of the Fridays for Future movement, but have more recently started to make a comeback.

"Civil disobedience attracts more attention than demonstrations," said sociologist Dieter Rucht.

"I see civil disobedience as a legitimate means of political protest, when it is peaceful," 27-year-old Green party politician Deborah Duering told RBB radio this week, claiming to share the "anxiety" of the activists.

In February, by contrast, many voices within the Green party had criticised Letzte Generation for blocking the roads in Berlin.

For Herrmann, if politicians want the protests to stop, there is an easy solution.

"It is enough for Scholz and Habeck to declare that they no longer want to encourage oil drilling in the North Sea," she said.

On Saturday in Munich meanwhile, thousands marched to urge G7 leaders gathering in Germany for a summit to do more to fight climate change.