An international team of distinguished climate scientists reports in the journal Environmental Research Letters that its members looked in detail at the action necessary to keep the promises made in Paris. And they have bleak news for the advocates of gradual change: there is no silver bullet, no engineering solution, no single answer that can address the challenge. The researchers combed through 414 scenarios for greenhouse gas emissions, and found only 50 that had a chance of restraining temperature rise to 1.5°C in the next eight decades. They also looked at five different kinds of global action that could reduce atmospheric levels of carbon dioxide, to find that no single one of them meets the Paris target. So the world will have to drastically reduce fossil fuel use to almost zero. It will have to restore and protect the natural wilderness − forests, wetlands, grasslands, mangrove forests and so on. Researchers will have to find how to draw down carbon from the atmosphere in ever-greater quantities and then identify ways of storing it for aeons. Humankind will have to switch to a sustainable plant-based diet on international scales to help reduce emissions of methane, nitrous oxide and other potent greenhouse gases. Industry, too, will have look for new efficiencies.
Climate News Network 20th May 2021 read more »
The world’s largest iceberg has broken off the coast of Antarctica, with aerial measurements calculating it to be larger than the Spanish island of Majorca.
Independent 20th May 2021 read more »
Times 20th May 2021 read more »