AMSTERDAM (AP) — Thousands of people, many warding off rain under umbrellas, have packed a central square in Amsterdam to march for more progressive climate policies in the Netherlands.

Organizers estimated that 30,000 people were attending Sunday’s march.

One carried a banner with the simple appeal: “Do something.”

In January, an environmental research institute said the Netherlands wasn’t doing enough to cut greenhouse gas emissions to levels ordered in a landmark court ruling.

The Dutch Environmental Assessment Agency said that the target of reducing emissions by 25 percent from 1990 levels by 2020 is “out of reach.”

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Dutch lawmakers have approved legislation that set as benchmarks a 95-percent reduction of emissions by 2050 compared with 1990 levels and a 49-percent cut by 2030.

However, a plan to achieve the targets hasn’t been approved.