World Water day - 22nd March

The theme for United Nations Water's World Water day in 2025 is 'glacier preservation', emphasizing the need for global action to manage melt water sustainably and reduce emissions, securing vital water resources for the future.

Glaciers are melting rapidly, disrupting water flows and affecting millions through floods, droughts, and rising sea levels. Mitigating climate change and adapting to the loss of glaciers is essential to protect communities and ecosystems.

The resources in this collection include materials on the theme of how sea ice and the oceans are affected by climate change, but also resources on the broader topic of water.

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Sea ice from space

In this set of activities, students will investigate Arctic sea ice and its connection to climate. They will discover what happens when oceans freeze by carrying out a series of practical experiments. They have the opportunity to analyse real images from ESA satellites (CryoSat and Copernicus) to locate sea ice...

Ocean acidification: Does carbon dioxide affect the pH of seawater and how does acidity affect the strength of seashells?

This resource provides a set of videos and a practical investigation aimed at supporting working scientifically in the classroom and relating science to real world experiences. In the first video Professor Brian Cox joins a teacher to find out how to set up and run an investigation into the effect of increasing...

Ocean acidification and carbon dioxide absorption

Many sea creatures such as crabs and shell fish are affected greatly by the levels of acid and temperatures of the ocean they live in as it prevents their outer shell development. This can lead to a depletion in numbers and a knock on effect along the food chain.

These resources include practical activities...

Sea level and Liverpool

A series of three short videos from the University of Liverpool, offering three perspectives on rising sea levels. 

Personal perspective

The video is a personal perspective looking at changes in sea levels over differing time-scales: from second to second to decades, with both local and global...

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