6th mass extinction

so I saw a post about the emu wars.. which led me to wikipedia emus which led to me reading about least concern threats of endangered species whihc led to me reading on the extinction of dinosaurs which led me to read on the 5 mass extinctions recorded on earth which led me to reading on the what is theorized as the current 6th mass extinction called the holocene extinction which led me to read on apex predators and their impacts on habitats and the function of food chains which led me to reading on the way electric eels work which led me back to predators that are extinct or endangered which led me to an interesting article about the human impact on the environment

Many childfree people are actually considerate of the needs of others instead of the wants of their own. I care about the future of the planet and the lives already in it. I think parents choose to forget there’s 7 billion people already on this planet, climate change is real, and humans are the causing the 6th mass extinction. It would be selfish of me to bring a child into a world that will have to contend with this and it would be selfish of me to bring a child into a world that needs less humans in it.

A nice place to visit. Photo by Amber Maitrejean

”What do you think they’ll find there?” she asked as he stood transfixed, watching the ship as it sped off towards the planet.

“It’s beautiful,” he said, “Unique, unlike anything else in the entire universe. There is a vast and diverse array of life. The land in some areas is as unique unto itself as this planet is in the universe. But the dominant species has rapidly reproduced and spread all around the planet. The species is intelligent, able to do great things, but in their drive for advancement they have poisoned the planet and themselves. It is currently in its 6th mass extinction. We will continue to observe and study.”

“Do you think it will survive?” she asked.

“The planet will once the dominant species has died off,” he replied. “It will take a long time to recover after that but it will survive. Perhaps after they have gone we will be able to inhabit this planet, make it ours, and because of their failure and what we have learned, we will exist in such a way that the planet will support us indefinitely. But for now, Earth is a nice place to visit, but we wouldn’t want to live there. The dominant species would never welcome us anyway as they are unable to coexist in harmony even amongst themselves, too unwilling to accept their differences. Too unwilling to reach a common goal at the risk of their own peril.”

“How terrible for them,” she said.

“Yes, it is,” he answered. “But their loss will one day be our gain.“

Today’s CO2 levels(400ppm) are now approaching that of the mid-Miocene period(405ppm) 15 million years ago when sea level was 25–40 meters higher and global mean temperatures were 3­–6°C hotter. And we’re still throwing fuel on the fire at a rate of change that is 100 times faster than at any time in the last 65 million years. Humans will be the first sentient beings to have documented their own demise while arguing with each over over the scientific data and whether it was really their fault.

As climate science has evolved in the last half century, we have learned that the earth is much more sensitive to abrupt climate events which can occur in as little as one year with a spike in temperature of up to 10°C.

“Swings of temperature that in the 1950s scientists had believed would take tens of thousands of years, in the 1970s thousands of years, and in the 1980s hundreds of years, were now found to take only decades. Ice core analysis by Dansgaard’s group, confirmed by the Americans’ parallel hole, showed rapid oscillations of temperature repeatedly at irregular intervals throughout the last glacial period. Greenland had sometimes warmed a shocking 7°C within a span of less than 50 years. For one group of American scientists on the ice in Greenland, the “moment of truth” struck on a single day in midsummer 1992 as they analyzed a cylinder of ice, recently emerged from the drill hole, that came from the last years of the Younger Dryas. They saw an obvious change in the ice, visible within three snow layers, that is, scarcely three years! The team analyzing the ice was first excited, then sobered — their view of how climate could change had shifted irrevocably. The European team reported seeing a similar step within at most five years (later studies found a big temperature jump within a single year). ‘The general circulation [of the atmosphere] in the Northern Hemisphere must have shifted dramatically,’ Dansgaard’s group eventually concluded.” ~ The Discovery of Global Warming by SPENCER R. WEART

We race towards extinction in our mad stampede to nowhere.
theguardian.com
Earth faces sixth ‘great extinction’ with 41% of amphibians set to go the way of the dodo

A stark depiction of the threat hanging over the world’s mammals, reptiles, amphibians and other life forms has been published by the prestigious scientific journal, Nature. A special analysis carried out by the journal indicates that a staggering 41% of all amphibians on the planet now face extinction while 26% of mammal species and 13% of birds are similarly threatened.

Many species are already critically endangered and close to extinction, including the Sumatran elephant, Amur leopard and mountain gorilla. But also in danger of vanishing from the wild, it now appears, are animals that are currently rated as merely being endangered: bonobos, bluefin tuna and loggerhead turtles, for example.