Imagine your work week is reduced from five to four days without a pay cut. That's precisely what some companies in the UK did over a six-month trial period. Apparently, this is good for workers, business and the environment. Is the four-day work week overdue?

Most Germans choose to be cremated when they die. But this process has many environmental downsides. A green funeral startup from Berlin wants to make human composting the new normal. But just how eco-friendly is this and why hasn't it taken off in Germany yet?

Rationing could be an effective way of reducing carbon emissions rapidly and fairly, according to a recent study by UK scientists. But just how would this work and would people really go along with it?

The trade in frogs legs is thriving. Every year, millions of tons of the delicacy are exported from Asia to the European Union, the world’s biggest customer by far. But scientists warn the trade is unsustainable, and that Europe’s insatiable taste for the amphibian’s limbs could cause some species to die out altogether.

From the suffragettes to US civil rights campaigners, there are many examples from history of social movements using direct action to push for change. It's a tactic climate activists in the West are increasingly resorting to today. But do radical acts still work with a challenge as immense as climate change? And how are such protests viewed in other parts of the world?

Disruptive climate protests are encouraging the authorities in some democracies to push for harsher anti-protest measures and new legislation. Civil rights groups fear the right to peaceful protest could come under threat. In Germany, for instance, climate activists from 'The Last Generation' have already been placed in preventive detention. Is more escalation on the horizon?

Just Stop Oil activist Lora Johnson has been arrested several times for disruptive climate protests in the United Kingdom. She has no intention of stopping, even if it means being separated from her son. But just how far is she prepared to go to achieve her goals?

Exposure to loud noise can lead to health issues in humans. But it can also be harmful for wildlife. The problem is only going to get worse as cities expand. So what can we do about it?

Locally produced biogas could help reduce Germany's dependence on natural gas imports. So why doesn't it play a bigger role? German farmer Henning Varnholt knows all the stumbling blocks. He's been producing biogas since 2009 despite criticism from neighbors. Today, he and his community are self-sufficient and the critics have fallen silent. But is biogas really all it's cracked up to be?

Germany's government wants to install thousands of new wind turbines as part of its plan to phase out fossil fuels. But finding a place to put all these windmills is proving controversial - even within green circles. Some critics argue wind is far too volatile a power source, while others warn these massive structures will harm vulnerable ecosystems. So when does this technology make sense?