Insight and inspiration in turbulent times.
Billions of people across the world could see climates they’ve never experienced before by the middle of the century, a new study says. Using a measure of climate ‘familiarity,” the researchers show that the tropics in particular are likely to experience conditions that are virtually unheard of for the region in the present climate.
More importantly, the days spent on crossing by sail put nothing into the atmosphere except the breath of the sailors. Today’s commercial passenger fleet is responsible for 3 to 5 percent of climate forcing, on its way to 15 percent according to some IPCC projections. Clearly it is going in the wrong direction.
“How can we reconcile our desire to save the planet from the worst effects of climate change with our dependence on the systems that cause it? How can we demand that industry and governments reduce their pollution, when ultimately we are the ones buying the polluting products and contributing to the emissions that harm our shared biosphere?”
Proponents call them oil sands while opponents call them tar sands. Whatever they’re called, Alberta’s bitumen reserves are so massive, James Hansen warns that it could be game over for the world’s climate if all are extracted and burned.
There is no insurance policy that will protect us against catastrophic climate change. We cannot get our habitable climate back on any time scale that matters to humans once it’s gone. The insurance policy is us, that is, changes in our behavior and our technology done quickly enough to matter. There is no other hedge that will help us.
Black carbon is a product of incomplete combustion from forest fires and the burning of both wood and fossil fuels, and its influence on the Arctic is like the proverbial death by a thousand cuts.
Suffice it to say that, at a time when our president openly denies that climate change is real, let alone the most consequential challenge we face, the NYT screwed up by hiring yet another columnist to cast doubt on the scientific consensus that immediate action is necessary to avoid the collapse of human civilization.
Given that most people in industrialized countries accept that climate change is a scientific reality, why do so few rank climate change as one of their high priorities? Why do so few people discuss climate change with their families, friends, and neighbours?
With atmospheric levels of CO2 recently jumping at a rate of 3ppm per year, CO2e levels could soon be increasing at 4-5ppm per year. A level of 550 ppm CO2e, consistent with a 3 degree centigrade rise in temperatures, would then be reached in the early 2030’s.
Not since World War II have more human beings been at risk from disease and starvation than at this very moment. About 20 million people in three African countries — Nigeria, Somalia, and South Sudan — as well as in Yemen were likely to die if not provided with emergency food and medical aid.
The cost of allowing global temperature to rise to 2C, rather than capping warming at 1.5C, is an area of permafrost the size of Mexico, according to new research. The study, carried out by a team of scientists from Sweden, Norway and the UK, is the first to work out what the ambitious targets contained in the Paris Agreement mean for permafrost loss.
The movements for climate justice and environmental justice are about healing deep wounds of injustice and oppression via environmental action. Climate action can, if done right, be a powerful force for making a society more equal and advancing human rights. It can be a catalyst for positive social change.
