European science event held in Inverness
A major conference examining global environmental issues has been held in Inverness.
More than 120 delegates from all over the world gathered in the city for the four-day European Meeting on Environmental Chemistry.
Topics discussed included the role of peatlands in storing carbon dioxide and the recycling of marine plastic waste.
The conference, which came to an end on Friday, was organised by the Thurso-based Environmental Research Institute.
The institute at North Highland College UHI is part of the University of the Highlands and Islands.
The European Meeting on Environmental Chemistry is hosted by a different organisation each year on behalf of the Association of Chemistry and the Environment.
Last year's meeting took place in Turin, Italy, and delegates will travel to Portugal in 2017.
This year's conference was held at Inverness' Eden Court and included trips to Loch Ness, Muir of Ord and Strathpeffer.
The event also featured two Highland cattle brought from nearby Leys Castle Estate to the venue as a surprise for the gathering's international delegates.