One of the world's most acclaimed environmental researchers has warned of an 'explosive era' of infrastructure expansion across the globe, calling for a new approach to protect vulnerable ecosystems.
James Cook University Distinguished Research Professor, William Laurance is the lead author of the study, which has been published in the journal Current Biology.
He said the world is being developed at an unprecedented pace, which comes at a great cost to critical habitats and wildlife. "We are living in the most explosive era of infrastructure expansion in human history," said Prof Laurance.
The team of scientists, which has contributed to the paper, argue nine issues must be addressed to limit the environmental impacts of the ongoing global expansion of roads, energy and infrastructure projects.
"By mid-century, it is expected that there will be 25 million kilometres of new paved roads globally, enough to encircle the Earth more than 600 times."
"Nine-tenths of these new roads will be in developing nations, which sustain many of the planet's most biologically rich and environmentally important ecosystems," said Prof Laurance.
Study co-author, U.S. ecologist and former advisor to three U.S. Presidents, Thomas Lovejoy said governments around the world need to protect vulnerable environments.
"The challenge will be to design and manage infrastructure in ways that respect the natural environment from which we all benefit," Professor Lovejoy said.
The study is being used by scores of world-leading scientists, environmental activists and celebrities as part of a campaign to lobby the G20, which represents the 20 wealthiest nations on Earth.
The G20 leaders announced in November a scheme to invest US$60-70 trillion in new infrastructure globally by 2030.
Prof Laurance said this would more than double the net investment in new roads, dams, power lines, gas lines, and other energy infrastructure globally.
"Unless managed with extreme care, it would be an environmental disaster wrapped in a catastrophe," he said.
The researchers emphasise that the threat to the environment is even more serious when illegal development activities are considered, in addition to those that are officially sanctioned. In the Brazilian Amazon, for instance, there are three times more illegal roads than there are legal roads.
"Roads that penetrate into wilderness areas often have particularly serious effects, often opening a Pandora's Box of environmental problems--such as promoting habitat conversion and fragmentation, poaching, illegal mining, wildfires, and land speculation," said Professor Laurance.
He and his colleagues raise nine important points for addressing these challenges:
Prof Laurance said it's vital that those involved in evaluating, promoting, and funding such projects engage not just with those who stand to gain from such projects, but also with those who stand to lose.
For further information contact:
Distinguished Professor William Laurance
James Cook University, Cairns, Australia
Email: firstname.lastname@example.org (monitored continuously)
Laurance, William F., Anna Peletier-Jellema, Bart Geenen, Harko Koster, Pita Verweij, Pitou Van Dijck, Thomas E. Lovejoy, Judith Schleicher, and Marijke Van Kuijk. 2015. Reducing the global environmental impacts of rapid infrastructure expansion. Current Biology, DOI:10.1016/j.cub.2015.02.050.
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