In 2008 and again in 2012 James Hansen made a public statement warning that as a result of the rapid Arctic changes a planetary emergency existed. In 2010 James Hansen's book Storms of My Grandchildren The Truth About the Coming Climate Catastrophe and Our Last Chance to Save Humanity explained the emergency in detail.
Many authorities have warned that we are in a global climate change planetary emergency.
The rapidly melting Arctic snow and summer sea ice has changed our world. Now the Global North is in a climate emergency as well as the Global South, due to N. hemisphere climate instability, extreme summer heat and drought - which will affect world food security and prices.
In addition a planetary emergency exists for all future life because the Arctic summer sea ice is past its tipping point (2007) and Arctic methane feedback has started, which leads to rapid runaway global warming.
This site explains why we are now all in a global climate emergency. and why it is essential that the world's public demands the emergency be acknowledged and an all out global emergency response be launched.