Climate change is not a “vague concept” but reality, and it is having an impact on people everywhere.

That’s the opinion of Patricia Espinosa Cantellano who has been appointed Executive Director of the UN climate change secretariat, the UNFCCC.

The veteran diplomat from Mexico was in Paris last December for the signing of the landmark international treaty which seeks to limit global temperature rise to below two degrees Celsius.

Ms Espinosa told Dianne Penn what she hopes to accomplish in the face of what she described as “this big, big challenge” for the planet.

Duration: 5’01”