The news about climate change and sustainability is very polarised at the minute. On one hand we have some stupendously good news, such as:

• Global carbon emissions flat-lining for the last three years;
• The Paris Climate Change Agreement coming into force;
• Investment in and installation of renewable energy continuing to soar while prices tumble;
• China and India turning their backs on coal.

On the other hand, things still look very bleak:

• 2016 breaking the warmest year on record yet again and carbon concentrations in the atmosphere continuing to rise;
• Arctic sea ice taking an extremely worrying direction;
• There are signs we are heading to the first mass extinction since the end of the dinosaurs;
• A climate change denier being elected to the White House (based on expressed views, although these always seem to be subject to change).

Regular readers will know I generally favour the former over the latter, but both can be either constructive or destructive, depending on how we decide to respond:

• Positive news should inspire us to go further faster rather than complacency;
• Negative news should also spur action and not maroon us in despondency.

Whichever, the choice is ours. Choose wisely.