The map by Climate Central, a group of independent scientists and communicators, highlights areas that will be submerged if nations manage to meet their pledged commitments to reduce greenhouse gas emissions.
Areas across Dumbarton that have been outlined as affected in the next 25 years are Dumbarton Golf Course, Bridge Street, sections of Dumbarton Castle and Broadmeadow Industrial Estate, parts of the railway line and Leven Grove Park, as well as a stretch of Dumbarton Road by Bowling.
The data also shows the River Leven will burst its banks from the Clyde up to Renton.
This comes as nations have pledged to reduce their greenhouse gas emissions to cap global heating at 1.5C, as set out in the Paris Agreement.
Climate Action Tracker graphs that show current trajectory with pledges (Image: CAT)
However, data from the Climate Action Tracker shows that even if current pledges are fully met, the world remains on course for 2.2C of warming. Existing commitments for this decade put the planet on a 2.9C trajectory, far above the 1.5C target.
If high emissions continue, impacts such as sea level rise and coastal flooding will be more severe, in line with human-caused climate change.
As a result, the UN has warned that nations must go beyond their current pledges and take stronger action to secure a stable future.
A rise of just 2C above pre-industrial levels would expose 2.3 billion people to deadly heat and humidity at least once a year.
Rainfall patterns would also shift dramatically, with precipitation increasing by up to 20% across central and northern Europe, heightening flood risks. Meanwhile, southern and eastern Europe could see droughts increase by 30%, compared with a global rise of 15%.
At the same time, an additional 411 million people living in urban areas would face water scarcity in a 2C warming scenario.