Counting on … day 1

7th January 2026

How do we protect and preserve fresh water supplies – part 2

Land use changes, especially things such as deforestation and urbanisation, have aggravated the problem – 

“Deforestation, agriculture, and urban expansion have greatly changed the way land stores and moves water. When forests are cleared or soils are sealed under concrete, they lose their ability to hold green water — the moisture that plants rely on. This weakens local rainfall, increases runoff, and can intensify both floods and droughts. Changes to land systems also affect regional weather patterns, such as monsoons, and create feedback loops that further influence the climate.” (1)

Reducing or indeed eliminating such land use changes is clearly beneficial for the wellbeing of the planet. We can go further by reversing the changes by both protecting and increasing land uses that capture and store – eg through reforestation,  restoring peatlands and wetlands, re-wriggling  rivers (ie allowing them to flow freely and more slowly across a greater expanse of the flood plain, re-establishing water meadows, limiting the extraction of water to protect lakes and aquifers etc.

These nature based solutions not only protect supplies of fresh water, they also protect and enhance biodiversity and reduce the risk of flooding, creating a better environment for us to enjoy.

(1) https://www.planetaryhealthcheck.org/boundary/freshwater-change/

Counting on … day 76

28th March 2024

Biodiversity is “the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species and ecosystem levels. Biodiversity is not distributed evenly on Earth; it is usually greater in the tropics as a result of the warm climate and high primary productivity in the region near the equator. Tropical forest ecosystems cover less than 10% of Earth’s terrestrial surface and contain about 50% of the world’s species.” (https://en.wikipedia.org/wiki/Biodiversity)

Biodiversity is linked to climate change. When the climate is changing, ecosystems change and with them species must also adapt and change. If the climate change is rapid, some species may not be able to change at a sufficient pace and their numbers will decline rapidly. Conversely biodiversity is often boosted by practices designed to reduce climate change – eg planting more natural woodland, restoring natural habitats such as peat bogs and wet lands, etc benefits and therefore boosts biodiversity.