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Thursday, December 12, 2024

Climate change, unsustainable land practices intensify droughts

Droughts across the world are intensifying and have become a “slow onset, silent killer” to which no country is immune, according to the UN’s most senior official working on desertification, drought and land restoration issues.

Ibrahim Thiaw, executive secretary of the UN Convention to Combat Desertification (UNCCD) was speaking at the opening of COP16 a major global conference taking place in Riyadh, Saudi Arabia, where a new global drought regime is expected to be agreed which will promote the shift from reactive relief response to proactive preparedness.

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Droughts are a natural phenomenon, but in recent decades have been intensified by climate change and unsustainable land practices. Their number has surged by nearly 30 percent in frequency and intensity since 2000, threatening agriculture, water security, and the livelihoods of 1.8 billion people, with the poorest nations bearing the brunt.

They can also lead to conflict over dwindling resources, including water, and the widespread displacement of people as they migrate towards more productive lands.

More than 30 countries declared drought emergencies in the past three years alone, from India and China, to high-income nations such as the US, Canada and Spain, as well as Uruguay, Southern Africa and even Indonesia.

Droughts impeded grain transportation in the Rhine River in Europe, disrupted international trade via the Panama Canal in Central America, and led to hydropower cuts in the South America country, Brazil, which depends on water for more than 60 percent of its electricity supply.

Firefighters were even called to an urban park in New York City, in the United States in wintry November 2024 to tackle a bush fire after weeks of no rainfall.

“Droughts have expanded into new territories. No country is immune,” said UNCCD’s Ibrahim Thiaw adding that “by 2050, three in four people globally, up to seven and half billion people, will feel the impact of drought.”

Domino effects

Droughts are rarely confined to a specific place and time and are not simply due to a lack of rainfall but are often the result of a complicated set of events driven or amplified by climate change, as well as sometimes the mismanagement of land.

For example, a hillside which is deforested is immediately degraded. The land will lose its resilience to extreme weather and will become more susceptible to both drought and flooding.

And, once they strike, they can trigger a series of cataclysmic domino effects, supercharging heat waves and even floods, multiplying the risks to people’ s lives and livelihoods with long-lasting human, social and economic costs.

As communities, economies, and ecosystems suffer the damaging effects of drought, their vulnerability is increased to the next one, feeding a vicious cycle of land degradation and underdevelopment.

Around 70 percent of the world’s available freshwater is in the hands of people living off the land, most of them subsistence farmers in low-income countries with limited livelihood alternatives. Around 2.5 billion of them are youth.

Without water there is no food and no land-based jobs, which can lead to forced migration, instability, and conflict.

“Drought is not merely an environmental matter,” said Andrea Meza, UNCCD deputy executive secretary. “Drought is a development and human security matter that we must urgently tackle from across all sectors and governance levels.”

Droughts are also becoming harsher and faster due to human-induced climate change as well as land mismanagement and typically the global response to it is still reactive. More planning and adaption is required to build resilience to the extreme conditions created by dwindling supplies of water and this often happens at a local level. UN News

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