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Africa and Climate Change

D 16 mai 2022     H 05:30     A     C 0 messages

Although Africa has contributed relatively little to the planet’s greenhouse gas emissions, the continent has suffered some of the world’s heaviest impacts of climate change, from famine to flooding.
The reverberations of human-caused global warming will only get worse, according to a new United Nations report.

The U.N. Intergovernmental Panel on Climate Change predicted that Saharan flooding, heat and drought will increase, Africa’s rich array of wildlife and plants will decline and glaciers on its most iconic mountains will disappear in coming decades.

On a continent already grappling with high poverty levels and food insecurity, the panel warned that fishermen and farmers will feel the pain of future climate change on their lives and livelihoods.

Warming temperatures will weaken Africa’s food production system by leading to water scarcity and shorter growing seasons, the U.N. report said. Yields of olives, sorghum, coffee, tea and livestock production are expected to decline.

“Agricultural productivity growth has been reduced by 34% since 1961 due to climate change more than any other region.” the panel said.

Climate change, along with conflicts, instability and economic crises, has contributed to hunger. Since 2012, the undernourished population in sub-Saharan Africa has increased by 45.6%, according to the U.N. Food and Agriculture Organization. And in 2020, approximately 98 million people suffered from acute food insecurity and needed humanitarian assistance in Africa, said the Global Report on Food Crises by the World Food Programme.

If the world warms just another degree Celsius (1.8 degrees Fahrenheit) by 2050, an additional 1.4 million African children will suffer severe stunting from malnutrition that limits growth and cognitive development, the IPCC said.

“The lack of food and under-nutrition are strongly linked with hot climates in the sub-Saharan area and less rainfall in West and Central Africa,” the panel said in a FAQ document. “Climate change can undermine children’s education attainment, thus reducing their chances for well-paid jobs or higher incomes later in life.”

Jean Paul Adam, who heads the climate change division at the U.N. Economic Commission for Africa, said, “Africa constitutes 17% of global population but only accounts for less than 4% of global greenhouse gas emissions. This is the region of the world already being severely impacted of climate change plus having an extremely low adaptive capacity.”

Climate change has a major social injustice component, with the poor hit harder by pollution from the rich, said former Ireland President Mary Robinson, now with The Elders, a Nelson Mandela- founded group of senior statesmen. “All of the injustices are captured by looking at the region of Africa.”

Drought is a problem that hits the continent particularly hard. While only 7% of the world’s disasters were drought related, they caused slightly more than one-third of the disaster deaths, “mostly in Africa,” the IPCC report said.

Droughts have also reduced Africa’s hydropower by about 5% compared to the long-term average, hindering growth, the report said.

“When we look at impacts, it isn’t just that Africa is getting hit with the droughts and cyclones and the sea level rise and the disruption of rainfall patterns,” said Canadian climate scientist Katharine Hayhoe, chief scientist for The Nature Conservancy. “It’s that their vulnerability is so much higher than a lot of other places.”

Scientists say it is impossible to untangle Africa’s poverty and harm from climate change.

“Africa gets the short shrift because it’s in some ways more vulnerable to physical impacts, but also because there’s going to be a lot of people living on less than a dollar a day,” said climate scientist Zeke Hausfather of the Breakthrough Institute.

The report warns of threats posed to livelihoods of 12.3 million people who depend on fisheries.

The report said global warming also will hit Africa’s famous wildlife and highest mountains.

It predicted glacier ice covers on the Ruwenzori Mountains and Mount Kenya would be gone by 2030 and that Mount Kilimanjaro would lose its around 2040.

By 2100, the report said, climate change is expected to lead to loss of more than half of African bird and mammal species — and a 20% to 25% decline in the productivity of Africa’s lakes and plant species. Increased damage to coral reefs from pollution and climate change is expected to harm fisheries and overall marine biodiversity.

In the coming decades, Africa’s mainland, islands and coastal cities will be exposed to climate change risks that can seriously undermine economic sectors such agriculture, tourism, transportation and energy.

The report predicts reduced frequency of Category 5 cyclones, although it says they are projected to be more intense with high impacts upon landfall.

By 2030, the report projects that 108 to 116 million people in Africa will be exposed to sea-level rise — and that without adaptation measures, 12 major coastal cities will suffer a total of $65 billion to $86.5 billion in damages.

Rapid African urbanization, inadequate infrastructure as well growth of informal settlements will expose more people to climate hazards, the report said.

It noted that sub-Saharan Africa is the only region that has recorded increasing rates of flood mortality since the 1990 — and that millions of people were displaced by weather-related causes in 2018 and 2019.

“A lot of cities are completely unprepared for the scale of the challenges ahead, or even actively making the situation worse,” said Kaisa Kosonen a senior policy advisor at Greenpeace Nordic. “Real action on climate change requires resilient urban development and justice.”

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