Germany's centre-right government coalition hit a new low in an opinion poll released Wednesday, while the Greens kept their newfound position as strongest opposition party, DPA reports.
Chancellor Angela Merkel's government coalition of Christian Democrats (CDU/CSU) and Free Democrats (FDP) won approval ratings of just 33 per cent, according to pollsters Forsa.
The Green Party reached 25 per cent, placing it ahead of the left- of-centre Social Democrats, at 23 per cent, for the second week in a row.
If the opinion poll results were replicated in an election, the opposition Greens and SPD would win a majority with a combined 48 per cent - 15 percentage points ahead of a CDU-FDP coalition.
The Greens have seen their approval rates soar in recent weeks, due in part to their opposition to a huge underground train station being built in Stuttgart, capital of Baden-Wuerttemberg state. For weeks, tens of thousands of people have demonstrated against the project.
Another survey demonstrated broad popular support for environmental issues, as 26 per cent of those asked by Forsa said they would vote for ecological campaign group Greenpeace if it were a political party.
The so-called Stuttgart 21 rail project has become the key issue ahead of state elections in Baden-Wuerttemberg next March, and could deal a serious blow to Merkel's Christian Democrats, who are in power there.