By Radwan Jakeem
NEW YORK | PARIS (IDN) – UN biodiversity experts have warned in a hard-hitting report into the impact of humans on nature that “the very foundations of our economies, livelihoods, food security, health and quality of life worldwide” are being eroded. Current efforts to conserve the earth’s resources will likely fail without radical action, said Sir Robert Watson, chair of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES).
Presented to more than 130 government delegations for their approval at the seventh session of the IPBES Plenary at UNESCO headquarters in Paris from April 29 to May 4, the report features the work of 400 experts from at least 50 countries, coordinated by the Bonn-based IPBES. They warn that around one million species are threatened with extinction as nature declines more than ever before in history.
Speaking at the launch of the Global Assessment study – the first such report since 2005 – UNESCO Director-General Audrey Azoulay said that its findings put the world “on notice”. Following the adoption of this historic report, “no one will be able to claim that they did not know,” she said. “We can no longer continue to destroy the diversity of life. This is our responsibility towards future generations.”
Highlighting the universal importance of biodiversity – the diversity within species, between species and of ecosystems – the UNESCO head said that protecting it “is as vital as fighting climate change”.
In addition to providing exhaustive insights on the state of nature, ecosystems and how nature underpins all human activity, the study also discusses progress on key international goals, such as the Sustainable Development Goals (SDGs), the Aichi Biodiversity Targets and the Paris Agreement on climate change.
Based on the systematic review of about 15,000 scientific and government sources, the report also draws (for the first time ever at this scale) on indigenous and local knowledge, particularly addressing issues relevant to Indigenous Peoples and Local Communities.
“Biodiversity and nature’s contributions to people are our common heritage and humanity’s most important life-supporting ‘safety net’. But our safety net is stretched almost to breaking point,” said Prof. Sandra Díaz (Argentina), who co-chaired the Assessment with Prof. Josef Settele (Germany) and Prof. Eduardo S. Brondízio (Brazil and USA).
The average abundance of native species in most major land-based habitats has fallen by at least 20 percent, mostly since 1900. More than 40 percent of amphibian species, almost 33 percent of reefforming corals and more than a third of all marine mammals are threatened.
The picture is less clear for insect species, but available evidence supports a tentative estimate of 10 percent being threatened. At least 680 vertebrate species had been driven to extinction since the 16th century and more than 9 percent of all domesticated breeds of mammals used for food and agriculture had become extinct by 2016, with at least 1,000 more breeds still threatened.
“Ecosystems, species, wild populations, local varieties and breeds of domesticated plants and animals are shrinking, deteriorating or vanishing. The essential, interconnected web of life on Earth is getting smaller and increasingly frayed,” said Prof. Settele. “This loss is a direct result of human activity and constitutes a direct threat to human well-being in all regions of the world.”
To increase the policy-relevance of the report, the assessment’s authors have ranked, for the first time at this scale and based on a thorough analysis of the available evidence, the five direct drivers of change in nature with the largest relative global impacts so far. These culprits are, in descending order: (1) changes in land and sea use; (2) direct exploitation of organisms; (3) climate change; (4) pollution and (5) invasive alien species.
The report notes that, since 1980, greenhouse gas emissions have doubled, raising average global temperatures by at least 0.7 degrees Celsius – with climate change already impacting nature from the level of ecosystems to that of genetics – impacts expected to increase over the coming decades, in some cases surpassing the impact of land and sea use change and other drivers.
Despite progress to conserve nature and implement policies, the report also finds that global goals for conserving and sustainably using nature and achieving sustainability cannot be met by current trajectories, and goals for 2030 and beyond may only be achieved through transformative changes across economic, social, political and technological factors. With good progress on components of only four of the 20 Aichi Biodiversity Targets, it is likely that most will be missed by the 2020 deadline.
Current negative trends in biodiversity and ecosystems will undermine progress towards 80 percent (35 out of 44) of the assessed targets of the Sustainable Development Goals, related to poverty, hunger, health, water, cities, climate, oceans and land (SDGs 1, 2, 3, 6, 11, 13, 14 and 15). Loss of biodiversity is therefore shown to be not only an environmental issue, but also a developmental, economic, security, social and moral issue as well.
“To better understand and, more importantly, to address the main causes of damage to biodiversity and nature’s contributions to people, we need to understand the history and global interconnection of complex demographic and economic indirect drivers of change, as well as the social values that underpin them,” said Prof. Brondízio.
He added: “Key indirect drivers include increased population and per capita consumption; technological innovation, which in some cases has lowered and in other cases increased the damage to nature; and, critically, issues of governance and accountability. A pattern that emerges is one of global interconnectivity and ‘telecoupling’ – with resource extraction and production often occurring in one part of the world to satisfy the needs of distant consumers in other regions.” [IDN-InDepthNews – 06 May 2019]
Photo credit: IPBES
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