By c0ns_lt3th. Global Warming. Published at Tuesday, January 08th, 2019 - 10:00:24 AM.
It’s clear that 2018 was a terrible year for Earth’s climate. California saw the deadliest and most destructive wildfires in its history, the continually thawing Arctic got down to the last 5% of its oldest and thickest ice, and after slowing in recent years, greenhouse gas emissions were once again on the rise. This year was the fourth hottest on record.
Reports from climate experts were grim as well. A dire report from the U.N.’s Intergovernmental Panel on Climate Change, released in October, predicted widespread food shortages, massive coral reef die-offs and more deadly heat waves by 2040 if greenhouse gas emissions are not rapidly brought under control. A U.S. government study released last month warned that the country’s agriculture, infrastructure and economy will all suffer stark consequences if global warming is not reined in.
While it may seem there may be nothing to be optimistic about, there is one very good reason for hope: renewable energy.
In the past decade, the cost of producing solar power has dropped 80% — a shift that is pricing dirtier energy sources like coal and natural gas out of the energy market. In 2017, coal-hungry China added 53 gigawatts of solar power, eclipsing the total solar output of most nations. Morocco, Egypt and even the oil-exporting United Arab Emirates are investing in renewable power. More than half of the world’s new capacity for making energy comes from renewable sources such as wind and solar.
That renewable energy can also replace fossil fuel to power automobiles. There were more than three million electric cars on the road in 2017. The International Energy Agency predicts that number will balloon to 125 million by 2030. A fleet that size would keep an estimated 2.57 million barrels of oil — the amount Germany uses in a year — out of out the energy pipeline.
Some newer studies, based largely on how quickly electric cars are catching on and how dramatically their prices are dropping, now predict a “fast adoption scenario” where electric cars could make up 90% of cars in the U.S. by the mid-2040s. One International Monetary Fund economist who studies the issue equates today’s gas and diesel cars to yesterday’s horses and buggies — transportation modes that went by the wayside as the price of the Model T dropped.
The march toward carbon-free power and transportation is being propelled by advances in battery technology that can store power generated by the sun and wind for later use and increase the range of electric cars. The world’s largest lithium-ion battery (made by Tesla) started up this year in South Australia and is expected to earn back a third of its $65 million cost in its first year. Even more exciting game-changing battery technologies — using screen printing, graphene/cellulose or zinc — are under development.
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