Ramblings of a 70-year old: humans

Thursday, December 1, 2022

COP15, the December nature summit in Montreal, cautions about a human driven mass extinction looming ahead

Described as the lesser-known equivalent of the climate crisis, humans do have a “once-in-a-decade" chance to fix it. In other words, it is necessary to apply brakes to the destruction of life-sustaining ecosystems. It seems global wildlife populations have plummeted nearly 70 percent in just 50 years. The result is mindboggling – experts say an unprecedented one million species are now at risk of disappearing off the earth forever. International talks are coming up in Canada next week. Its aim would be to strike a global biodiversity treaty in order to apply brakes on the nature crisis. It could be similar to the historic Paris Agreement that tackled climate breakdown. Former French diplomat Laurence Tubiana, integral to the Paris deal, said protecting climate and life-sustaining nature are "inseparable challenges, but our global governance system has splintered them." A mass extinction looms – and we have a 'once-in-a-decade chance' to fix it. The December nature summit in Montreal proposes to reverse wildlife decline by 2030, as well as to protect 30 percent of land and sea. There would be a global biodiversity goal to "direct targets, laws, policies and funding at all levels and regions, much like the Paris Agreement has started doing for climate action.” That is what Ms Tubiana says.

Professor Alexandre Antonelli, director of science Kew Gardens explains – “The climate and nature crises are "intertwined." Biodiversity is absolutely critical to our lives and we losing it at an accelerating speed." Each country has its own interests and draws battle lines over things like pollution and cash. The previous global plan to stop species extinction and habitat destruction did not help and the world failed to achieve a single 2020 target. Professor Alexandre Antonelli cautions - "It is absolutely essential that we get it right this time." Otherwise, we may "reach a tipping point, after which it may be impossible or extremely hard to revert the loss of nature." The death of the Amazon rainforest is the best example. It regulates the world's climate and provides vital water to nearby industries and megacities. However, humans have chopped down nearly 18 percent of the forests. Once it reaches 25 percent, the rainforest will stop producing water and turn into a dry savannah. Instead of absorbing climate-heating carbon dioxide, the new ecosystem would begin to unleash it. Campaigner Ruth Davis cites a drought in Argentina in 2017-18, exacerbated by deforestation in the Amazon. It inflicted $4.6bn loss to the economy of one of the biggest agricultural producers in Latin America.

Monday, August 29, 2022

NASA enters second phase of going to the Moon after 50 years

The world is waiting for NASA to enter the second phase of exploring the Moon. Its Space Launch System SLS is set to lift-off to set the foundation for the Artemis project. This is being developed to put humans back on the lunar surface after half a century. The mission will also pave the way for flights to Mars in the 2040s. At present, the rocket will conduct test on a capsule far from Earth. This capsule is called Orion, the program calls for the spacecraft to loop around the Moon on a big arc. It will later return to Earth and splash down in the Pacific Ocean in six weeks' time. Orion is unmanned for this demonstration. However, in case everything goes as per plans, astronauts will be on board for missions that are more complex. These could begin in 2024. Artemis: Nasa ready to launch new era of Moon exploration. NASA astronaut Randy Bresnik explains the objective. He says - "Everything we're doing with this Artemis I flight, we're looking at through the lens of what can we prove out and what can we demonstrate that will buy down risk for the Artemis II crewed mission."

The American space agency has multiple opportunities to fly SLS-Orion. However, its intention would be to seize the first available opportunity. Right now, the weather in Florida is very dynamic. There are possibilities of electrical storms passing over the spaceport. In fact, the lightning towers have already been struck recently a number of times. Therefore, NASA has to weigh all the options available and select the most appropriate time slot. Incidentally, the rocket is not supposed to lift off in the rain.