Electric power may need to be stored when there is excess power available so that it can be released when needed. StanislavPejovic, in a recent seminar, proposed that we need as much storage capacity as the amount of intermittent renewablesto provide for those days when there is no wind or sun. Although with widely distributed grids this is less likely to happen, it is certainly something to ponder.

There are a variety of ways that this can be done ...

  • Pumped hydro - Conventional pumped hydro uses two vertically-...

Is there any carbon budget remaining?

David Spratt (author of "Climate Code Red: The case for emergency action") has written a very important report on the carbon budget & the myth of “burnable carbon”. His report contains inconvenient truths.

C40 Cities - Deadline 2020

According to this very important report (pdf):

Deadline 2020 presents the first significant pathway for relating the ambition of the Paris Agreement to action on the ground.

This would allow C40 cities, representing 650 million people and 25% of the world’s GDP, to deliver individual emissions trajectories consistent with limiting global temperature rise to 1.5 degrees.

The report lists the climate risks for...

This is the slide presentation (pdf) that Climate Action Now gave at a meeting of the Toronto Climate Action Network.(December 2016)