The Mass of Human-Made Materials Now Equals the Planetâs Biomass, Weizmann Institute Finds
We are doubling the mass of the anthropogenic part of the world every 20 years â and the curve is not flattening
Weizmann Institute of Science
Newswise The mass of all human-produced materials – concrete, steel, plastics, asphalt, etc. – has now grown to equal the mass of all life on the planet, its biomass. According to a new study from the Weizmann Institute of Science, we are exactly at the crossover point, and humans are currently adding buildings, roads, vehicles, and products at a rate that is doubling every 20 years, leading to a “concrete jungle” that is predicted to reach over 2 teratonnes (2 million million) – or more than double the mass of living things – by 2040.
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A doctor shows medical records to cancer patient in hospital ward (iStock)
Israeli researchers have found previously unknown amino acids on tumors, which could be exploited in the future to boost the effectiveness of cancer treatments.
Short chains of amino acids known as peptides are essential to the success of immunotherapy; they work by activating T cells, which fight the cancer.
But many patients don’t have enough of these peptides, which are derived from mutated cancer genes, to make immunotherapy successful.
The shortage of peptides is seen as one of the reasons that many people fail to respond to checkpoint inhibitor drugs, which block the cancer from suppressing the immune response and send the peptides into action.