© Getty Images

© Getty Images

Venice, Italy -

In the near future, Venice faces two threats: rising sea levels and the city itself sinking, by two millimeters every year.  

© Shutterstock

Venice -

Having already been hit by severe flooding, climate change is likely to increase the frequency of high tides that will submerge the city.

© Getty Images

Venice, Italy -

 And while it has flood-defense systems in place, they'll become more difficult to maintain as the crisis worsens. 

© Getty Images

Malé, Maldives -

The island nation of Maldives has been aware of the threat of rising sea levels for quite some time. They have even begun building a floating city to deal with it. 

© Getty Images

Malé, Maldives -

The Maldivian capital's infrastructure and surrounding islands are at risk. 

© Getty Images

Malé, Maldives -

From the airport to the island of Hulhumalé, rising tide levels pose a serious problem.

© Getty Images

New Orleans, USA -

The city has levees and flood walls in place, which protects it from floodwater out of Lake Maurepas in the north, and from Lake Salvador and Little Lake in the south. 

© Getty Images

New Orleans, USA -

Without these defenses, New Orleans would be severely threatened by rising sea levels. However, even with them in place, the damage could be catastrophic.

© Shutterstock

New Orleans, USA -

During Hurricane Katrina in 2005, there were over 50 levee and flood wall failures, which caused flooding in 80% of the city and all of St. Bernard Parish.

© Getty Images

Basra, Iraq -

Basra is Iraq's main port city, which lies on the Shatt al-Arab, an enormous river that feeds into the Persian Gulf. 

© Getty Images

Basra, Iraq -

Due to its network of canals, streams, and neighboring marshland, Basra and its surrounding areas are especially vulnerable to a rise in sea levels.

© Getty Images

Basra, Iraq -

On top of that, Basra already suffers significantly from waterborne diseases, so increased flooding could be even more threatening. 

© Shutterstock

Ho Chi Minh City, Vietnam -

The areas most at risk in Ho Chi Minh City are its eastern districts, particularly the flat Thủ Thiêm. 

© Getty Images

Ho Chi Minh City, Vietnam -

The city is also increasingly threatened along the Mekong Delta. 

© Getty Images

Ho Chi Minh City, Vietnam -

While the city center is unlikely to be underwater by 2030, chances are it will be more vulnerable to flooding and tropical storms.

© Shutterstock

Amsterdam, Netherlands -

There's a reason why this nation is called the Low Countries. Amsterdam, Rotterdam, and The Hague sit low and close to the North Sea. 

© Getty Images

Amsterdam, Netherlands -

Known for their flood defenses, it seems the country's system of dams, barriers, and floodgates will become even more essential in the years to come.  

© Getty Images

Savannah, USA -

Savannah sits on a hurricane hotspot, but even without extreme weather, the historic city could see land swallowed up by the sea. 

© Getty Images

Savannah, USA -

The Savannah River in the north and Ogeechee River in the south could both flood the city, meaning that when hurricanes and floods appear, the effects may be even worse.

© Getty Images

Kolkata, India -

The region around Kolkata has thrived for centuries due to its fertile, cultivated land. But therein lies the concern as the city expands into the surroundings.

© Getty Images

Kolkata, India -

Kolkata could struggle in the future during monsoon season as rainwater has less land to run off into. 

© Getty Images

Nagoya, Japan -

The build-up of some coastal Japanese cities makes them vulnerable to rising sea levels, especially during typhoon season in May and October. 

© Getty Images

Nagoya, Japan -

While most are well-equipped to deal with such events, the industrial port of Nagoya might have some big problems.

© Getty Images

Nagoya, Japan -

Located next to the Nagara and Kiso rivers, the western parts of the city could be vulnerable to extreme flooding.

© Getty Images

Port Said, Egypt -

It isn't just the north-eastern coastal city of Port Said that's under threat of rising tide levels. Vast areas to the west and below the city could also be submerged. 

© Shutterstock

Port Said, Egypt -

The local government has begun building barriers out of sand and concrete so that farmers don't lose land and crops to flooding. 

© Shutterstock

Bangkok, Thailand -

A 2020 study found that the Thai capital could be the city that's worst hit by global warming in the short term. Bangkok sits just five feet (1.5 meters) above sea level, and it's sinking much faster than Venice. 

© Getty Images

Bangkok, Thailand -

Also, the city is built in dense clay soil, which makes it even more prone to flooding.

© Getty Images

Bangkok, Thailand -

By 2030, most of the coastal areas of Tha Kham and Samut Prakan could be underwater. The same goes for its main airport, Suvarnabhumi International.

© Getty Images

Khulna, Bangladesh -

Bangladesh's third-largest city, Khulna is just 29 feet (nine meters) above sea level, which is alarming considering climate change. 

© Getty Images

Khulna, Bangladesh -

As shown by 2021's devastating floods, much of the country is vulnerable to extreme flooding, but Khulna seems even more at risk. 

© Getty Images

Georgetown, Guyana -

For centuries, Guyana's capital Georgetown has relied on sea walls for protection from storms, especially one gigantic, 280-mile-long (450 km), sea wall.

© Getty Images

Georgetown, Guyana -

Around 90% of Guyana's population lives on the coast, and the country will need to reinforce its sea wall if Georgetown's central areas are to avoid massive damage.

© Getty Images

Dandong, China -

While Dandong isn't one of the most popular tourist destinations, it's still pretty huge, with over two million people living there. 

© Getty Images

Dandong, China -

Located on the Yalu River, this north-eastern city looks out over to North Korea. And there's a potential of this below-tide-level area becoming submerged. 

© Getty Images

Banjarmasin, Indonesia -

The Indonesian city of Banjarmasin is built largely below sea level, on a swampy delta near the Barito river. 

© Getty Images

Banjarmasin, Indonesia -

Known as the City of Thousand Rivers, Banjarmasin is also a center for indigenous Banjarese culture, which risks being impacted by rising sea levels. 

Sources: (Time Out) (Climate Central) (Live Science) 

See also: Countries with the lowest income tax rates

© Getty Images