Think back to what you did last weekend. You might be able to picture it clearly, but there should be no doubt in your mind that whatever you are remembering happened in the past. For people with post-traumatic stress disorder (PTSD), however, memories of traumatic events often return in the form of vivid flashbacks that make it feel like it’s happening all over again – putting them right back at the scene of a car crash, or the moment they lost a loved one.
Entrepreneurs in the aquaculture sector face a problem – extracting all the valuable molecules from seaweed and algal cells is still really difficult. But marine enzymes and magnets are now making it easier to remove precious molecules and can even turn microalgae into magnetically-guided ‘vehicles’ for targeted drug delivery.
Cities across Europe are trialling schemes such as roof gardens and ‘mobile forests’ to embed more nature into urban areas in an effort to protect their citizens from climate change events like heatwaves, floods and droughts.
Rivers in Europe are so congested with concrete obstructions like weirs, bridges and other man-made barriers that they no longer flow freely, which harms the wider environment. Removing these blockages could restore these vital aquatic ecosystems to their former glory.
It is used as a fertiliser to help crops grow, burned as a fuel for heat, and is even used as a building material. But exactly when and how humans began using dung is a mystery that is now starting to be unravelled by researchers.
As the world moves towards a carbon neutral future, many different areas from industry to manufacturing are working to reduce their emissions. But scientists are beginning to look at a different area – houses – to work out if it’s possible to reduce emissions from Europe’s homes to zero by retrofitting on a mass scale. And the early signs are promising.
Tapping into the genetic diversity contained within the seeds of wild relatives and forgotten crop plants could help farmers decrease their dependency on global agribusiness and grow food better suited to local conditions.
Virtual reality and scenario-testing models are being built to help urban planners and architects get real-time feedback about the impact of their designs on mental health, particularly for older people.
Countries across Europe are committing to carbon neutrality. But what are the big issues?
The environmental impact of AI must be assessed, say experts.
Jean-Eric Paquet tells Horizon how a new annual event - Research & Innovation Days - aims to shape European research over the next 8 years.