Trees play a vital role in the fight against climate change - they capture CO2 and lock it away
A 5cm x 5cm x 5cm block of wood locks up emissions, generated by each of the following :

Boiling a kettle of water (1.4 litres). The energy required to heat 1g of water from 15 to 100°C
355.7kj

Driving a moped/scooter for 1 km. Emissions from a moped/scooter (<125CC) typically.
72.9g CO2/km

Watching a 32" LCD TV for just under an hour LCD TV's have a typical 'power on'
consumption.