It’s a cold winter morning in the bleak and bare arable fields of the East Anglian fens. At the edge of a field, a scientist dips a long pole into a ditch. So, what is a climate researcher doing here?
We are measuring greenhouse gas emissions from ditches and canals by collecting samples of ditch water and analysing them in the laboratory. We also use floating chambers – a low-tech creation (sometimes coupled with high-tech sensors) made of a plastic bucket and noodle-shaped swimming floats that sit on top of the water and collect the gases emitted from it.
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