Global warming is causing both positive and negative impacts for the UK. Potential positive impacts include longer growing seasons and the ability to grow new crops in southern parts of the country. However, negative impacts outweigh the positives, such as many coastal areas being flooded by rising sea levels, loss of farmland and natural areas, and increased extreme weather events. International agreements like the Kyoto Protocol have aimed to reduce greenhouse gas emissions to mitigate global warming, but signing and enforcement among countries has been a challenge.