UK climate change laws should be extended to other areas of "environmental breakdown" with binding targets to protect natural systems, a think tank has said.
Scotland met its annual climate change target for 2015, although there was a slight rise in greenhouse gas emissions compared with the previous year, new figures have shown.
Greenhouse gas output in the UK fell almost 8% in 2014, although emissions from transport and agriculture rose slightly, official figures show.
Common commodities such as cocoa and coffee are under threat from global warming, businesses have warned as they backed a strong climate deal at international talks in Paris.
Global greenhouse gas emissions are set to stall or even fall slightly in 2015 - despite economic growth, a study has revealed.
The UK needs to cut greenhouse gas emissions by 57% by 2030 to meet its long-term goal for tackling climate change cost-effectively, government advisers have said.
The head of the World Meteorological Organisation has said immediate action must be taken if mankind is to keep global warming at manageable levels.