The message is an update on the 1992 caution sent out by the Union of Concerned Scientists which was backed by more than 1,700 experts who all said our future was bleak.
But with little to no action being take, the prediction has escalated and more scientists are backing the warning.
Issues such as a strain on natural resources has the experts urging “scientists, media influencers and lay citizens” to put more pressure on the powers that be to take more action.
Major concerns on the list are a population which continues to grow rapidly, catastrophic climate change, deforestation, mass species extinction, ocean “dead zones”, and lack of access to fresh water, which is leading scientists to warn that we “are jeopardising our future”.
The researchers say in the past 25 years the amount of fresh water available per person has reduced by 26 per cent and the places in oceans where nothing can live, known as “dead zones”, has increased by 75 per cent.
An additional 300 million acres of forests have been lost and human population has jumped by 35 per cent while the number of animals has dropped by 29 per cent.
Professor William Ripple, from Oregon State University, said: “Humanity is now being given a second notice.
“We are jeopardising our future by not reining in our intense but geographically and demographically uneven material consumption and by not perceiving continued rapid population growth as a primary driver behind many ecological and even societal threats.
“By failing to adequately limit population growth, reassess the role of an economy rooted in growth, reduce greenhouse gases, incentivise renewable energy, protect habitat, restore ecosystems, curb pollution, halt defaunation, and constrain invasive alien species, humanity is not taking the urgent steps needed to safeguard our imperilled biosphere.”
Prof Ripple said: “Those who signed this second warning aren’t just raising a false alarm. They are acknowledging the obvious signs that we are heading down an unsustainable path.
“We are hoping that our paper will ignite a widespread public debate about the global environment and climate.”