The Living Rainforest

Forest Biomass

Observing forest biomass

Plants contribute to the environment’s biomass, which refers to the mass of living organisms in a specific area. Monitoring forest biomass is essential for estimating carbon sequestration and assessing environmental damage or risks. It also provides insights into environmental changes from space, such as how climate change impacts plant growth.

Through the process of photosynthesis, plants and trees absorb carbon dioxide from the atmosphere and release oxygen. Forests serve as significant carbon sinks by taking in atmospheric carbon and storing it as they grow. This process, known as carbon sequestration, helps reduce the amount of carbon dioxide in the atmosphere.

Biomass satellite over forest
Carrying a novel P-band synthetic aperture radar, ESA’s Biomass Earth Explorer satellite mission, due to launch in 2025, will deliver completely new information on forest height and above-ground forest biomass from space. This information will provide new insight into the state of our forests and how they are changing, and further our knowledge of the role forests play in the carbon cycle. Credit ESA/ATG medialab

Impact of deforestation

Deforestation occurs due to activities such as agriculture expansion, urban development, logging, and mining, which remove trees for economic or practical purposes. This leads to habitat loss for animals living in forest, but it also takes the forest out of action in terms of carbon sequestration. Moreover, many trees removed from forests are burned, combustion releases the sequestrated carbon into the atmosphere are carbon dioxide.

Forest in Brazil
Captured by the Copernicus Sentinel-2 mission on 25 July 2023, the image shows tropical forest which has been cleared for logging in the state of Pará in Brazil. Credit ESA


palm oil deforestation
The Copernicus Sentinel-2 mission takes us over palm oil plantations in East Kalimantan - the Indonesian part of the island Borneo. Various stages of the deforestation process are clearly visible – the green patches in the plantations are the well-established palm oil farms, while the light brown patches show the newly-harvested land. The surrounding lush rainforest is visible in dark green.

Palm oil is the most widely-produced tropical edible oil. It’s used in a vast array of products – from ice cream and chocolates, to cosmetics such as make up and soap, to biofuel. Not only is it versatile, palm oil is also a uniquely productive crop. Harvested all year-round, oil palm trees produce up to nine times more oil per unit area than other major oil crops.

To meet global demand, palm oil trees are grown on vast industrial plantations – leading to acres of rainforest being cut down and a loss of habitat for species such as the orangutan . Between 1980 and 2014, global palm oil production increased from 4.5 million tonnes to 70 million tonnes, and is expected to increase.





Links to further information:

ESA – Biomass Mission

ESA – Biomass