Imagine this. The government are reviewing the national guidelines on sugar consumption. You would think that this decision would be made by a group of experienced, intelligent and nonpartisan professionals. Unbeknownst to us, 'industry bodies' and 'corporate sponsors' are ushered into the conversations. Therefore, in amongst the doctors, politicians and health professionals, representatives from Coca Cola, Nestle and Kraft appear.

We need to get different sectors talking. Climate change and water are intertwined and we need to speak each other's language when it comes to planning and funding adaptation efforts. We can no longer have countries develop water policies that don't include climate risks, nor can climate planners operate without consulting key water ministries.

Remember this number: 1.5 degrees. That's the upper limit for global warming that our governments will try to stay under, as agreed at the global climate negotiations in Paris last year. Everything all of us do from this point on will be measured against it.

Photo courtesy of Arnaud Bouissou According to UNFCCC the Paris Agreement can only be successful if everyone fully supports it, and helps bring it ...

Despite the universal good will of the COP21 Climate Summit, we have to confront the harsh reality of an increase in temperature above 1.5C, we have to fight it and above all we have to be creative and take risks. It will require the vision and voices of activists and scientists, artists and designers, to translate the agreement of ministers into an emergency call for action that reaches everyone in every walk of life.

Every year I rashly agree to forecast/guess what will be the key sustainability trends for the year ahead. This time last year I did predict that under investment in flood defences would force government onto the back foot reducing them to sticky plaster solutions - so I got at least one right! What then might happen in 2016?

It feels like Christmas has come early. Everything we have been discussing and debating since the Copenhagen climate change meeting in 2009 and the Rio Earth Summit in 2012, seems to have come together. It is what we do now that will be what define us though. Will 2015 be a wasted promise or a defining moment?

Our world leaders have agreed a surprisingly ambitious deal in Paris to tackle the challenge posed by climate change. But in our efforts to manage our expectations do we risk finding ourselves slightly under-prepared for the response that is now required?

I was in Paris over the weekend for the end of the #COP21 UN climate summit. As a campaigner I was under no illusion that the Paris Agreement would be little more than a vague commitment to seriously tackle climate change.

The Paris Agreement reached on 12 December is a triumph of the human spirit, built around the world class diplomacy of France, the UNFCCC Executive Se...

The Paris Climate Change Conference (also known as COP21) is a political milestone in the global fight against climate change. All 195 participating countries agreed to the resulting Paris Agreement. I will examine the key lessons from the negotiations in five categories that matter the most: diplomacy, politics, law, business and economics.