Environment News Service: World leaders gathering in Paris in December for the 21st annual UN Climate Conference, COP21, are expected to sign a legally-binding international agreement to limit global warming to no more than 2 degrees Celsius above pre-industrial levels. Ahead of the conference, organizers have requested that countries submit Intended Nationally Determined Contributions, or INDCs, pledges to reduce greenhouse gas emissions, by an amount that supposed to be fair and ambitious. To date, 150 INDCs have been...