Chief Operating Officer of energy think tank Ember, Phil MacDonald, talks to Alasdair about the new challenges of decarbonising the global energy sector and what has been achieved so far in Europe in the UK.
He explains how the gradual phasing out of coal use has switched the focus to other fossil fuels and how the UK's need to show climate leadership for the next COP may be creating unnecessary pressures for finding so called "negative emissions".
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