Thousands are taking to the streets in London today to demand radical action to combat the climate crisis. Protesters with the group Extinction Rebellion have set up encampments and roadblocks across Central London and say they’ll stay in the streets for at least a week. It’s just the beginning of a series of global actions that will unfold in the coming days, as activists around the world raise the alarm about government inaction in the face of the growing climate catastrophe. The London protests come just days after schoolchildren around the globe left school again on Friday for the weekly “strike for climate” and as the push for the Green New Deal continues to build momentum in the United States. The deal—backed by Congressmember Alexandria Ocasio-Cortez and Senator Ed Markey—seeks to transform the U.S. economy through funding renewable energy while ending U.S. carbon dioxide emissions by 2030. We speak with climate activist and journalist Bill McKibben, who has been on the front lines of the fight to save the planet for decades. Thirty years ago, he wrote “The End of Nature,” the first book about climate change for a general audience. He’s just published a new book titled “Falter: Has the Human Game Begun to Play Itself Out?”
If the world is to quit coal and gas for renewable energy sources, they have to be reliable and affordable. Is that realistic? Researchers have crunched the numbers and come up with some surprising answers.
How much sun and wind is available in different areas of the world?
How high is the energy demand? How do we set about cutting costs for renewable energies and their storage?
which has just been published, outlines strategies for 145 different
regions around the world, with the ultimate aim of reducing greenhouse gas emissions to zero by 2050 — and even save money in the process.
energy system costs less than our current one and ensures that global
warming remains under 1.5 degrees Celsius (34.7 degrees Fahrenheit),”
says study coordinator and Professor for Solar Economy at LUT, Christian
Breyer. On average, the renewable energy system would be about two
percent cheaper globally.
‘Global Energy System based on 100% Renewable Energy,’ the study
simulates the most cost-effective energy mix for each region and shows
how the energy requirements for electricity, heat and transport can be
replaced by renewable alternatives.
Based on its findings, the most important source of energy is solar power (70 percent), followed by wind power (18 percent), biomass (5 percent) and hydropower (3 percent).