Experts Seek Cheaper Climate Change Measures — Property — The Guardian Nigeria News – Nigeria and World News
Amid fears that the problem of climate change will be exacerbated by rising greenhouse gas (GHG) emissions, particularly carbon dioxide (CO2), experts have argued for climate change alternatives. cheaper and easier to integrate into Nationally Determined Contributions (NDCs).
They lamented that measures such as carbon capture and storage (CCS) are financially draining and unaffordable for many developing countries, including Nigeria.
The expert spoke at a workshop on: “Carbon Mineralization Using Industrial Waste: Affordable Country Contributions to the Paris Agreement”, organized by the Society’s Education and Research Cluster Nigerian Chemical Engineers (NSChE).
Advancing the post, a senior lecturer in the Department of Chemical Engineering at Osun State University, Dr. Luqman Abidoye, said developing countries could benefit from the abundance of natural minerals and wastes. industrial, rich in metal oxides to mineralize CO2 emissions from various industrial and domestic sources. , with a view to respecting the NDCs of the Paris Agreement. He said it would also help leverage the carbon credit policy economically.
Abidoye said myriads of these wastes could be found in steel industries, aluminum processing industries, mining exploration sites, agricultural wastes, oil exploration industries and others.
He said: “Sea water in Lagos and on the coast of many towns in the Niger Delta can also be harnessed to promote large-scale mineral carbonation. It is an affordable option to meet Nigeria’s long-term low emissions policy in 2050 towards achieving the commitment to the Paris Agreement.
“Global dependence on fossil fuels is increasing. Emissions may not decrease in the short term. Meanwhile, governments are introducing stricter environmental regulations to control emissions of GHGs and other harmful pollutants, as well as new initiatives for environmental technologies, waste recovery and recycling.
Abidoye revealed that the average global temperature on earth has increased by at least 1.1 degrees Celsius, storms and droughts are becoming more intense, polar ice caps are melting, thus causing the oceans to rise. He added that low-lying coastal areas are flooded, animals are losing habitat and there are record heat waves.
He further stated that if not mitigated, the Amazon rainforest could die, sea levels could rise above 10 meters in the coming centuries, and the ice caps of Greenland and Antarctica could disappear while low areas may disappear.
According to him, urgent mitigation must include carbon capture, CCS, cryogenic carbon capture (CCC), carbon mineralization, carbon capture use and storage, fuel decarbonization and energy efficiency. energy and fuel system.
He said: “The challenge of carbon capture and storage includes leakage of the stored gas into the atmosphere, contamination of the nearby aquifer, seismicity of the storage area. “Meanwhile, many countries do not have storage capacity. In addition, CCS is expensive and unbearable for many developing countries. These countries could adopt ex situ mineral carbonation for CO2 fixation. It is cheaper to perform carbonation using minerals and developing countries and islands with little or no storage capacity can turn to ex situ carbonation to save the climate,” he said. declared.
NSChE Education and Research Cluster Coordinator Dr Muritala Ibrahim said: “Each year, billions of tonnes of alkaline feedstock for carbon mineralization could be produced from certain industrial wastes associated with the manufacture of carbon. iron and steel, burning coal, and fertilizer. Under certain circumstances, the mineralization of these wastes could considerably reduce their disposal costs and their negative effects on the environment. But in developed countries, a significant percentage of this waste is already put to good use in ways that protect the environment. By embedding CO2 in solid rock, carbon mineralization offers the most sustainable method of CO2 removal and sequestration currently available.
He added that to reach the 2050 targets, it is expected that up to six billion tonnes of CO2 will have to be eliminated, which implies a huge opportunity for new jobs (direct and indirect jobs), new markets and a economic diversification across the world, adding that Nigeria should not be left out.
“Support for research, start-ups and spin-offs should be strongly encouraged, as there is great potential for using CO2 to synthesize products with improved properties. Additionally, it is possible that carbon mineralization is integrated after the energy conversion process to produce new products or integrated into the hydrogen synthesis process,” Ibrahim said.
He assured that the group will continue to improve and encourage collaboration platforms between universities, government agencies, research institutes and industrial partnerships and the collaborative process for the generation and commercialization of new knowledge. for use in industry.