Soils are polluted due mostly to human activities that leave excess chemicals in soils used to grow food, the United Nations reports.
Excess nitrogen and trace metals such as arsenic, cadmium, lead and mercury can impair plant metabolism and cut crop productivity, ultimately putting pressure on arable land, the UN Food and Agriculture Organization (FAO) on 23 June informed. “When they enter the food chain, such pollutants also pose risks to food security, water resources, rural livelihoods and human health.”
The issue took centre stage at the Fifth Plenary Assembly (PA) of the Global Soil Partnership (GSP) held at FAO headquarters in Rome this month.
“Soil pollution is an emerging problem, but, because it comes in so many forms, the only way we can reduce knowledge gaps and promote sustainable soil management is to intensify global collaboration and build reliable scientific evidence,” said Ronald Vargas, a FAO soils officer and Secretary of the GSP.
“Combating soil pollution and pursuing sustainable soil management is essential for addressing climate change,” said for his part Rattan Lal, President of the International Union of Soil Sciences, in his keynote address to the Plenary Assembly.
Tackling human-caused problems through sustainable practices will mean “more change will happen between now and 2050 than during the 12 millennia since the onset of agriculture,” he added.
The GSP Plenary Assembly is a unique, neutral and multi-stakeholder platform to discuss global soil issues, to learn from good practices, and to deliberate on actions to secure healthy soils for an effective provision of ecosystem services and food for all,” said Maria Helena Semedo, FAO Deputy Director-General, Climate and Natural Resources. “Action at the country level is the new frontier.”
The Plenary Assembly endorsed three new initiatives aimed at facilitating information exchange: the Global Soil Information System; the Global Network of Soil Laboratories, set up to coordinate and standardize measurement across countries; and the International Network of Black Soils, launched to increase knowledge about the world’s most fertile agricultural soils, which are also known for their high carbon content.
Soil Pollution Under Scrutiny
Around one-third of the world’s soils are degraded, due mostly to unsustainable soil management practices. Tens of billions of tonnes of soil are lost to farming each year and one cause is soil pollution, which in some countries affects as much as one-fifth of all croplands, the UN specialised agency reports.
The term soil pollution refers to the presence in soils of chemicals that are either out of place or at higher-than-normal concentrations. Such contamination may be produced by mining and industrial activity or by sewer and waste mismanagement.
In some cases, FAO adds, pollutants are spread over large areas by wind and rain. Agricultural inputs such as fertilizers, herbicides and pesticides — and even antibiotics contained in animal manure — are also major potential pollutants and pose special challenges due to the fast-changing chemical formulas employed.
“Soil pollution is an insidious risk because it is harder to observe than some other soil degradation processes, such as erosion. The hazards posed depend on how soil properties affect the behaviour of chemicals and the speed with which they enter ecosystems.”
The diversity of contaminants and soil types, and the ways they interact, make soil surveys to identify dangers difficult and expensive, according to FAO.
Black Soils
Although commonly referred to in national soil classifications, “black soils” are far from uniform. The new International Network of Black Soils defines them as containing at least 25 centimetres of humus and with soil organic carbon content above 2 per cent; by this definition they cover about 916 million hectares, or 7 per cent of the world’s ice-free land surface.
Around one-quarter of black soils are the classic “Chernozem” type, with a humus layer of more than 1 metre; these are found in the breadbasket steppe regions of Eastern Europe and Central Asia and in the former prairies of North America, the UN agency adds.
The International Network of Black Soils aims to promote the conservation and long-term productivity of black soils by producing analytic reports and serving as a platform for knowledge sharing and technical cooperation.
Truthout Is Preparing to Meet Trump’s Agenda With Resistance at Every Turn
Dear Truthout Community,
If you feel rage, despondency, confusion and deep fear today, you are not alone. We’re feeling it too. We are heartsick. Facing down Trump’s fascist agenda, we are desperately worried about the most vulnerable people among us, including our loved ones and everyone in the Truthout community, and our minds are racing a million miles a minute to try to map out all that needs to be done.
We must give ourselves space to grieve and feel our fear, feel our rage, and keep in the forefront of our mind the stark truth that millions of real human lives are on the line. And simultaneously, we’ve got to get to work, take stock of our resources, and prepare to throw ourselves full force into the movement.
Journalism is a linchpin of that movement. Even as we are reeling, we’re summoning up all the energy we can to face down what’s coming, because we know that one of the sharpest weapons against fascism is publishing the truth.
There are many terrifying planks to the Trump agenda, and we plan to devote ourselves to reporting thoroughly on each one and, crucially, covering the movements resisting them. We also recognize that Trump is a dire threat to journalism itself, and that we must take this seriously from the outset.
Last week, the four of us sat down to have some hard but necessary conversations about Truthout under a Trump presidency. How would we defend our publication from an avalanche of far right lawsuits that seek to bankrupt us? How would we keep our reporters safe if they need to cover outbreaks of political violence, or if they are targeted by authorities? How will we urgently produce the practical analysis, tools and movement coverage that you need right now — breaking through our normal routines to meet a terrifying moment in ways that best serve you?
It will be a tough, scary four years to produce social justice-driven journalism. We need to deliver news, strategy, liberatory ideas, tools and movement-sparking solutions with a force that we never have had to before. And at the same time, we desperately need to protect our ability to do so.
We know this is such a painful moment and donations may understandably be the last thing on your mind. But we must ask for your support, which is needed in a new and urgent way.
We promise we will kick into an even higher gear to give you truthful news that cuts against the disinformation and vitriol and hate and violence. We promise to publish analyses that will serve the needs of the movements we all rely on to survive the next four years, and even build for the future. We promise to be responsive, to recognize you as members of our community with a vital stake and voice in this work.
Please dig deep if you can, but a donation of any amount will be a truly meaningful and tangible action in this cataclysmic historical moment. We are presently looking for 98 new monthly donors before midnight tonight.
We’re with you. Let’s do all we can to move forward together.
With love, rage, and solidarity,
Maya, Negin, Saima, and Ziggy