London (CNN Business) Climate activists are preparing legal action aimed at forcing Royal Dutch Shell to exit the oil business.

A coalition of environmental groups in the Netherlands said Tuesday that they will hand over a court summons on April 5 if Shell does not change its business model to comply with the Paris climate accord.

Pressure on companies has been building since the UN warned last year that the world has The groups have accused Shell of "deliberately obstructing" efforts to keep global warming well below 2 degrees Celsius, the key goal of the Paris agreement.Pressure on companies has been building since the UN warned last year that the world has only 12 years to avert a climate disaster

The oil giant was first threatened with a lawsuit last year by the Dutch branch of Friends of the Earth. Greenpeace and ActionAid joined the initiative on Tuesday, along with four other groups.

Shell RDSA , which is headquartered in the Netherlands, has said it "strongly supports" the Paris agreement. It has committed to halving the carbon footprint of the energy it sells by 2050.