Counting on 2026 … day 9

19th  January 

Tree planting is key to restoring sustainable human lifestyles within safe  Planetary Boundaries. Yet disturbingly the UK is falling g behind with its tree planting targets. 

“New analysis from the Energy & Climate Intelligence Unit (ECIU) found that the UK is falling behind its tree planting targets, warning that the nation could miss the “critical window” for woodland creation needed to meet its climate and nature targets.

“The report found that more than 70 per cent of carbon removal from new trees up to 2050 will come from those that have been planted within the next five years. This is due to the time lag between when a tree is planted and when it has reached its peak carbon removal potential.

“However, if current planting rates are maintained, the total area of missed planting will be an area equivalent to three times the size of Greater London, with a third less carbon sequestered than on the Climate Change Committee’s (CCC) Balanced Pathway. This is equivalent to all residual industrial emissions in 2050.

“The CCC Balanced Pathway is the UK’s blueprint for reaching net-zero emissions by 2050, which calls for an 87 per cent emissions cut by 2040 as well as boosted efforts in renewable energy, energy efficiency and carbon capture.”

Counting on … day 72

22nd March 2024

Carbon sequestration is a formal name given to the processes by which carbon is captured from the atmosphere and stored on a long-term basis. Such long-term storage might include peat bogs, forests, kelp beds etc and may be referred to as ‘carbon sinks’.

Carbon sequestration can be used as a means of  mitigating the effects of climate change. This can be biologically by, for example, planting more forests, restoring peat bogs and wetlands, and re-establishing kelp meadows. This natural sequestration can be enhanced, in the case of forests, by using felled timber to make items such as buildings, furniture etc and keeping those items for hundreds of years. However growing trees for timber needs to be carefully managed to a) maximise the carbon captured by the growing tree, and b) to maximise the flourishing of biodiversity.

Carbon can also be sequestered geologically if the CO2 can be captured  eg from a cement factory. Then the CO2 “can be compressed to ≈100 bar into a supercritical fluid. In this form, the CO2 could be transported via pipeline … and  injected deep underground, typically around 1 km, where it would be stable for hundreds to millions of years.” (https://en.wikipedia.org/wiki/Carbon_sequestration)