Tens of millions of tons of seriously polluting plastic waste are floating all over the oceans. However, a technique for making biodegradable plastics can help improve this situation.
Unlike normal plastic, bio-plastic is made from biomass (biomass), not traditional fuel (coal, oil …). However, making this type of plastic requires a lot of fertile soil and clean water – something that is not everywhere. Therefore, a research team at Tel Aviv University has made great efforts to find a way to make new bioplastics from seaweed – a richer and more accessible resource. This is seen as a promising solution, greatly reducing the ocean load that is suffering from plastic waste, and accelerating the tendency to reduce human reliance on fossil fuels.
Biodegradable plastics can be made from marine algae – a rich and easily accessible material source on Earth.
Scientists have described in detail the process of producing this bioplastic in an article published in the journal Bioresource Technology. Some microorganisms in nature that are capable of producing a polymer called polyhydroxyalkanoate (PHA) – are used by many plants to synthesize plastics, but by feeding plants microorganisms (growing in soil and freshwater environment). Through many experiments, the team found that PHA can be obtained from Haloferax mediterranei – a seaweed-eating microorganism. Therefore, researcher Alexander Golberg, on behalf of the group, concluded that it is possible to produce bioplastics based on abundant marine resources with an environmentally friendly and harmless process. the inhabitants of the sea.
Every year, nearly 8 million tons of plastic waste is dumped into the oceans, even exceeding fish production (estimated by 2050), killing many marine species, destroying coral reefs. and adversely affect human health. Among the efforts to prevent disasters, many governments have banned the use of certain plastics. However, this is clearly a complex issue and requires multidirectional approaches, so bioplastics can be considered a potential solution.
Being buried by avalanches for 40 minutes, the 12-year-old boy survived miraculously
The rescue team used a search engine, and after 40 minutes, a professional dog found the boy with a jacket.
According to ACB News, a snowslide occurred on December 27 in the Alps. Accordingly, the 12-year-old boy went skiing with his friends near La Plagne resort. When he separated his group, he suddenly caught a part of the avalanche on the top of the mountain, which took about 100m.
The boy was brought up by the rescue team from the snowy slope
The accident caused the 12-year-old boy to be buried in the snow. However, because I did not carry the alarm signaling device, the search had many difficulties.
The rescue team had to use a helicopter to search. Finally, a professional dog found the boy after 40 minutes of being buried by his coat.
“This is a miracle because the victim does not carry an alarm signal. The chances of survival are very low after 15 minutes of being buried in the snow,” a lifeguard said.
The reason, the police thought that there might be some part of the gap not covered by snow and the boy was still breathing.
The boy broke his leg and was taken to the hospital in the city of Grenoble.