Predicting and Tracking Climate Refugees in Warming Africa
As global temperatures rise, erratic precipitation and natural disasters increase, millions of people need safer places, and managed evacuations—the purposeful and coordinated movement of people and assets away from danger—will become an increasingly necessary strategy around the world.
The Columbia Climate Schools Just Had Their Third Meeting Management Retreat, to explore this complex topic. Presentations during the panel discussion focused on current and future climate-driven resettlement strategies in Africa, where researchers estimate that up to 113 million people will be forcibly resettled within their own borders by 2050.
postdoctoral research scientist Fabian Cotter of International Earth Science Information Network Center is the lead author of two papers on climate migration in Africa.
Green Village Demonstration Village, Ruweru, Rwanda, a subject of forced resettlement research. (Courtesy of Lisa Dyer)
“Countries in Africa are more rural than those in the North and have limited capacity to invest in adaptation measures,” Kotil said. “It is therefore critical that we illuminate the impacts of climate change in these countries to raise public awareness [and] Identify possible policy pathways to limit damage and address migration. “
A paper Kotil presented at the conference looked at internal and cross-border migration in West Africa and tracked the impact of weather shocks on permanent international migration as well as seasonal and internal migration.
“We show that migration in the region is indeed affected by weather shocks, with seasonal and short-distance migration more important than permanent long-distance migration,” Cotill said.
Global research on international migration patterns tends to continue decades into the future. Columbia also led a study to develop short-term models to better predict and prepare for short-term migration flows.
“The model predicts future migration over multiple timescales, builds on the history of migration over the past few decades, and validates it using the observed history of underlying social and environmental drivers,” Cotill said. .”
Cottier and a team including Michael Puma, Jennifer A. Nakamura, Richard Seager and Alex de Sherbinin continue the work as these regions adapt to sudden or slow-onset climate impacts.
Another study presented at the meeting looked at what happened in 2016, when Rwandan President Paul Kagame The forced resettlement of some 2,000 people who have lived for generations on the islands of Mazane and Sharita in Lake Rweru on the border with Burundi was carried out. Part of this internal migration is due to heightened climate risk.Offered Placement Climate Schools researcher Lisa Dale and her team had the opportunity to take a closer look at possible lessons learned.
“I’m trying to understand the policy, the coercive model as a form of resettlement,” Dale said. “We wanted to see if this reflected good climate resilience. This is [a way for] Is the country going to adapt that parts of its landscape are now at high risk? does it work? What are the barriers to its success? said Dale.
She conducted this research in collaboration with University of Rwanda, She is also affiliated there.
Rwanda, one of the poorest countries in the world, is home to large numbers of subsistence farmers who are directly threatened by climate-induced disasters. While these were among the reasons for the resettlement, the action was also part of a larger government strategy enacted in 1996, when Rwandans fleeing the 1994 genocide began returning to their home countries. Officials have since instituted a policy of “villageization” of scattered rural residents through centralized resettlement. As part of this policy, Rwanda also adopted a rural resettlement program in 2008 to benefit poor rural residents and encourage them to move to planned resettlement sites. These early planned villages are shown as model villages.
For the most part, people in Mazaneh and Sharita recognize the risks of drought, floods and landslides and welcome them to move to the model green village of Ruweru. It provides relative security, health care, schools, and other government services. Many people who spoke to the research team said they were satisfied with the homes provided during the relocation process. Some people report sleeping on mattresses for the first time. However, there are also challenges. The people of Mazzani and Sharita have been farmers for generations, but the land they are now farming is not suitable for the crops they are used to. This leads to devastating poverty.
Studies have found that more than 20% of children are not in school. One villager told the researchers: “Sometimes my meals are not served, so he goes to bed with an empty stomach and cannot go to school the next day.”
“We concluded from this case that relocation can be transformative, but it has both positive and negative elements,” Dyer said. The plan “successfully integrates climate change adaptation, [and] This is part of the national economic development strategy,” she said. Dyer suggested more research into how resettlement is linked to poverty reduction and economic growth.
“I’m very interested in how Rwanda has integrated climate-driven resettlement into its already robust rural development strategy,” Dale said. “We are on the front end of long-term social and civilizational shifts, and are just beginning to see how some of these might play out.”
