内容摘要："Per Ardua" is a reference to the RAF motto "Per ardua ad astra", which translates as "Through adversity to the stars".

"Per Ardua" is a reference to the RAF motto "Per ardua ad astra", which translates as "Through adversity to the stars".

But that is what Hugo Daniel Chávez, a project manager for the NGO Sustenta Honduras, has done."We have so many businesses and domestic practices that create waste, so we are trying to transform waste and give it a second life," he tells the BBC.

Across Latin America, several million tonnes of cooking oil are consumed every year. It is often used to fry food, mostly chicken, plantain strips, chips and pork.But reusing and heating it too often - as is often the case in Honduras, where there is a huge black market for used cooking oil - can create compounds which are bad for consumers' health.Improperly discarded, it can also have a massive detrimental impact on the environment.

If it is drained down the sink, it can damage pipes and contaminate groundwater, and when it is tossed by the side of the road, it can contaminate freshwater and crops many communities rely on.Faced with these health and environmental hazards, the young green entrepreneurs behind Sustenta tried to come up with a solution which would not only give businesses an incentive to dispose of their oil and grease properly, but also turn these waste products into something useful.

The NGO's executive director, Ricardo Pineda, explains that their idea originated from earlier efforts by different companies and organisations to transform used cooking oil into biodiesel. "But in Honduras, we don't have a market for biodiesel," he says.

"So we decided to produce products that can do well in our domestic markets [such as soap and dog food]."The strong statements from both sides have raised concerns that trade tensions could again escalate between the world's two largest economies despite recent negotiations.

Trump on Friday said in a Truth Social post that the tariffs his administration had imposed had been "devastating" for China and so he had "made a FAST DEAL" to save them from "what I thought was going to be a very bad situation"."Everybody was happy! That is the good news!!! The bad news is that China, perhaps not surprisingly to some, HAS TOTALLY VIOLATED ITS AGREEMENT WITH US. So much for being Mr. NICE GUY!"

He did not expand on his accusation, but Ambassador Greer later told TV network CNBC that China was yet to properly roll back other trade restrictions it had levied on the US.Greer said when China responded to the US's tariffs with its own, they also put in place countermeasures such as putting some US companies on blacklists and restricting exports of rare earth magnets, a critical component in cars, aircraft and semiconductors.