Links tagged “species”

Will the Green New Deal keep cicada cycles at 17-years?

Reuters: Temperatures affect when cicadas emerge and their underground growth. Scientists witnessed large numbers of 17-year cicadas surface years ahead of schedule in 2017, which entomologists suspect could be related to global warming. ... "The biggest questions are: Is climate change changing their life cycles? And then, how does it change them?" said Chris Simon, an evolutionary biologist at the University of Connecticut who has studied the insects for more than three decades.

... With a better understanding of how cicadas know when to emerge, scientists may be able solve whether and how climate change is having an impact, Simon said. Eventually, we could see 17-year cicadas "escape through time" and permanently change to a 13-year cycle.

CNN: "Electric vehicles can’t happen without lithium — and a lot of it. Lithium is a critical mineral in the batteries that power electric vehicles. The world will need to mine 42 times as much lithium as was mined in 2020 if we will meet the climate goals set by the Paris Agreement, according to the International Energy Agency. Existing mines and projects under construction will meet only half the demand for lithium in 2030, the agency said. The United States has only one active lithium mine today. The country will need 500,000 metric tons of lithium carbonate equivalent by 2030, according to research by RK Equity, a New York firm that advises investors on lithium. The entire global lithium carbonate equivalent market last year was 325,000 metric tons, RK Equity partner Howard Klein told CNN Business."

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The US will have to produce almost twice the entire global production just to meet our own needs in less than a decade.

Bloomberg Green: "Two-thirds of America's total energy footprint is devoted to transportation fuels produced from agricultural crops, primarily corn grown for ethanol. It requires more land than all other power sources combined but provides just 5% of the nation's energy...The most land-intensive plan eliminates all fossil fuels and nuclear plants." ... 

"Is there even enough open land to build 250 million acres of new wind farms? The short answer is yes, according to estimates from the U.S. Department of Agriculture." ... "If the U.S. wants a carbon-free economy by 2050 using the least amount of land, it will need to rely less on wind and solar and instead build hundreds of nuclear plants and natural gas plants outfitted with systems to capture carbon dioxide."

"By 2050, when Biden wants the entire economy to be carbon free, the U.S. will need up to four additional South Dakotas to develop enough clean power to run all the electric vehicles, factories and more." ... "No matter how you slice it, the U.S. will need to dedicate more land to producing power in an emissions-free future."

"To rewild our environment, we need to create the correct conditions. This can be done through actions like reintroducing species that have disappeared, allowing forests to regenerate and preventing the fragmentation of rivers."

Alexander C. R. Hammond: "Prosperity frees people to protect the environment. ... the lockdowns may cause massive environmental destruction in the long term. Simply put, people can afford to care about the environment only when they have enough income to cover their basic needs. If their survival depends on killing an endangered animal or cutting down a rare tree, then so be it." ... 

"The Environmental Kuznets Curve (EKC) hypothesis posits that environmental damage increases in tandem with economic growth, but only until a certain level of income is reached. Once people are wealthy enough not to have to worry about day-to-day survival, environmental degradation stops, and ecosystems begin to recover. The environmental scientist Jesse H. Ausubel, for example, suggests that once a nation achieves a GDP per capita of $6,200 (in 2021 dollars), deforestation stops or afforestation occurs."

"The lockdowns have already wreaked havoc on endangered species and protected habitats in the developing world. In Kenya, the killing of giraffes has skyrocketed. Given that a tonne of giraffe meat is worth about $1,000 (i.e., almost seven months of the average Kenyan salary), it is unsurprising that desperate locals have resorted to slaughtering the endangered animal. Kenya’s Mara Elephant Project also recorded that illegal logging in the region peaked in the months following the first lockdown. In Botswana, government workers had to evacuate dozens of critically endangered black rhinos from the Okavango Delta after six of the animals were found dead after the lockdowns were implemented."