These species can threaten the health of plants and animals, including humans. And they cause huge economic harm.
“By taking a drone up we knew that we could cover more space, more quickly with fewer people," an expert says.
Coral reefs perform vital roles in protecting coastlines from erosion, floods and storms.
Researchers say adding regional solar and wind resources to Ethiopia's hydropower is a solution that benefits Egypt and Sudan too.
However, if decarbonization is the objective, the EU needs to do more than cap greenhouse gas emissions from energy production and transportation, but has to tackle the issue from a wider angle, where Brussels' policy programmes, from the Climate Law
Rare-earth metals are critical to the high-tech society we live in as an essential component of mobile phones, computers and many other everyday devices. But increasing demand and limited global supply means we must urgently find a way to recover