Many people who care about climate change are wrestling with what, if anything, they can do about it. Although many of the most popular consumer choices, from ditching plastic straws to using an electric vehicle instead of a gas-guzzler, have some environmental benefits — they don’t put a dent in global emissions. Meanwhile, carbon pollution is approaching frightening levels: According to an influential report published in October, the world could experience dangerous warming as early as 2030 if we don’t rapidly cut emissions.
And yet, President Trump has reversed course on a lot of US climate policies. His administration has repealed the Clean Power Plan designed to curb pollution from coal plants, gutted stricter climate standards for cars and trucks and, just this month, signed executive orders aimed to streamline the development of new fossil fuel projects. Trump also pledged to withdraw the US from the Paris climate agreement, slowing momentum for global action.
Suffice it to say: The Greenland Ice Sheet, which contains enough water to refill the Great Lakes 115 times over, is very large. And it is also falling apart.
A new study finds that the Greenland Ice Sheet added a quarter inch of water to global sea levels in just the past eight years. The research, published Monday in the journal Proceedings of the National Academy of Sciences, covers nearly 20 years previously not included in our detailed understanding of the troubled Greenland Ice Sheet. It finds that climate change has already bled trillions of tons of ice from the island reservoir, with more loss than expected coming from its unstable northern half.
It seems like you are seeing more and more grid-tied homes with solar in New York, mainly because of the state's policies that make it quite affordable. Solar is also becoming a bigger part of most off-grid cabins and homes in remote locations -- the technology has gotten inexpensive, and it's hard to imagine a future where most buildings don't have solar going forward.
That idea might soon carry the weight of scientific fact. Later this month, a committee of researchers from around the world will decide whether the Earth sprang into the Anthropocene, a new chapter of its history, in the year 1950. If accepted, this delineation will signal a new reality, that human activities, not natural processes, are now the dominant driver of change on Earth’s surface—that carbon pollution, climate change, deforestation, factory farms, mass die-offs, and enormous road networks have made a greater imprint on the planet than any other force in the past 12,000 years.
Starting next week, the committee’s 37 members will vote on two questions. First, should the Anthropocene be added as a new epoch to the Geological Time Scale, the standard scientific timeline of Earth’s 4.5-billion-year history? Second, should the Anthropocene, if it does exist, commence in the middle of the 20th century?
In 2015, a study in the Journal of Mathematical Biology pointed out that if the world’s oceans kept warming, by 2100 they might become hot enough to “stop oxygen production by phyto-plankton by disrupting the process of photosynthesis.” Given that two-thirds of the Earth’s oxygen comes from phytoplankton, that would “likely result in the mass mortality of animals and humans.”
I think the politicians aren't taking the threat of Climate Change seriously, because it would require difficult choices in the short-term, that aren't popular. In democracies, it's very difficult for elected officials to do things that will get them unelected by enacting policies that the public doesn't really like. Most people are focused on what "feels good today", with ignorance of the long-term consequences of their actions. It's actually, pretty damn scary where we as a globe are rapidly plunging towards.