96.5% of Earth's water is salty ocean water. Only 3.5% of all water on Earth is freshwater.
NASA has been monitoring freshwater depletion over the past 20 years using the satellite system GRACE. The data shows us that freshwater supplies are diminishing globally.
In many places around the globe, climate change is melting freshwater frozen in glaciers into the sea, making it unusable.
Using the data from NASA's satellites, Dr. Yiyun Kang has created an interactive artwork demonstrating the ongoing loss of fresh water and what we can do to help preserve our supplies. She explains her project here.
Explore the link between climate change and freshwater scarcity through Dr Kang's artwork experiment Passage of Water
.It explains the data and solutions for preserving what we literally can't live without.
Take part in the experiment
Discover more about the fresh water problem, how it affects us and our culture and what we can do, on our theme page Freshwater
On every continent, climate change is impacting and destroying cultural heritage sites.
Embark on a global journey to five heritage sites under threat from climate change, with very different stories about risks, adaptation, and resilience .
Rapa Nui, the indigenous name for Easter Island, is one of the most remote inhabited islands in the world. It was inscribed on the UNESCO World Heritage List in 1995.
" Heritage is an important part of our culture, it is a way of remembering our past. It is part of who we are.
" – Merahi Etmu
As sea levels rise and storms get worse, the coast around Rapa Nui is undermined and coastal heritage like the iconic moai are being lost to the ocean. See the climate crisis in action.
Chan Chan was once the capital city of the Chimú civilization on the northern coast of Peru. Between the 9th and 15th centuries, the metropolis was the largest Pre-Columbian city in South America.
" It is part of our identity, it is our roots from where we come from and it is our duty to preserve these things for our future generations to come
. " – Manuel Medina, Pan American Center Engineer
Climate change affects local weather conditions with more extreme periods of rainfall, drought, and rising groundwater levels. This affects the structural stability of the building foundations creating dangerous microclimates when the buildings are covered. See the climate crisis in action.
Described by a 14th-century traveler as "one of the most beautiful cities", Kilwa Kisiwani's coastal location became an important center of trade. The forts, palaces, and mosques that can be seen today show the important role it played in the region
“I think heritage is important to us because... it's what defines us... It's part of our identity. It's part of our surroundings, and it's what makes us who we are now
. ” –
Neema Tesha, Architecture student, University of Dar Es Salaam
In recent decades, the escalation of sea-level rise and coastal erosion due to climate change exacerbated by local land-use practices has resulted in the loss of some structures and archaeological deposits. See the climate crisis in action.
Located just a few kilometers north of the wetlands known as the Sundarbans, the Historic Mosque City of Bagerhat, Bangladesh, is home to the remains of hundreds of finely made brick buildings.
“ All these buildings here are not just tourist places, they have meaning to the people of Bagerhat, and the people of Bangladesh
.” – Golam Fardoush, Custodian Bagerhat District Museum
As a low-lying site, when the sea-level rises, this increases the amount of salt water that seeps into the buildings. The evaporation of water leaves salt behind, causing the monuments to decay. See the climate crisis in action.
Edinburgh has been the Scottish capital since the 15th century. Inscribed on the World Heritage List in 1995, the Old and New Towns extend over 1.78 square miles and contain approximately 4,600 buildings.
“The historic environment in Scotland it's part of our DNA that tells us who we are, and where we've come from. And it's really important that we have all that around us.”
– Ewan Hyslop, Head of Technical Research and Science, Historic Environment Scotland
The biggest climate related pressure to Edinburgh is extreme weather and increased rainfall. This puts heritage sites at risk of flooding and slope instability. See the climate crisis in action.
Around the globe, heritage professionals are working hard to adapt to the impacts and changes caused by climate change. It is increasingly important that our response is systemic and global.
Global action on carbon reduction is the only way to preserve these amazing cultures and places for future generations.
Discover more about our Heritage on the Edge .