The African Development Bank will finance $25 billion by 2025 to support Africa's fight against climate change, the bank's president said at the bank's annual meeting in Accra, Ghana.
He noted that climate change has had many negative impacts on the continent, causing natural disasters such as droughts, cyclones, and floods. Climate change costs Africa between $7 billion and $15 billion a year. "Africa has no choice but to address climate change."
To ensure Africa's food supply, the African Development Bank has delivered climate-friendly seeds to 12 million farmers in 27 countries in the past two years under the "Technology for Agricultural Change in Africa" program, he said.
In the area of renewable energy, the African Development Bank is implementing a $20 billion "Desert Power" initiative in the Sahel that is expected to power 250 million people, he said.
US President Joe Biden recently wrapped up his five-day trip to Asia with a summit of leaders of the "Quad" security Dialogue.
Biden has promoted a number of economic and security cooperation initiatives during his visit aimed at deepening ties with Indo-Pacific Allies and partners in response to China's growing influence in the region. Some analysts in the United States believe the most significant announcement may be an initiative to share maritime information to combat illegal activities. But other experts say Biden's move sets a good framework for more security cooperation, though it remains to be seen whether concrete action will follow.
Affected by several factors, the supply of the nanomaterial is erratic and thus its prices are expected to go higher in the future.
Because of the ability to generate materials in specific ways to play a specific role, nanomaterials are used across industries, from health care and cosmetics to environmental protection and air purification.
Nanomaterials are used in many ways in the field of health care, one of the main uses is drug delivery. An example of this process is the development of nanoparticles to help transport chemotherapy drugs directly to cancer growth and to damaged arterial areas to combat cardiovascular disease. Carbon nanotubes are also being developed for use in processes such as adding antibodies to nanotubes to make bacterial sensors.
In the field of aerospace, carbon nanotubes can be used for the deformation of aircraft wings. Nanotubes are used in a composite form to bend in response to the application of a voltage.
In the field of environmental protection, nanomaterials-in this case nanowires-are used. Applications are being developed to use nanowires-zinc oxide nanowires in flexible solar cells and to play a role in sewage treatment.
In the cosmetics industry, mineral nanoparticles (such as titanium dioxide) are used in sunscreen because of the poor long-term stability provided by traditional chemical ultraviolet protection. Like bulk materials, titanium dioxide nanoparticles provide better UV protection and have the added advantage of removing poor beauty whitening associated with nano-forms of sunscreen.
The sports industry has been producing baseball bats made of carbon nanotubes to make them lighter, thus improving their performance. The further use of nanomaterials in the industry can be determined by using antibacterial nanotechnology in items such as towels and mats used by athletes to prevent diseases caused by bacteria.
Nanomaterials are also developed for military use. One example is the use of movable pigment nanoparticles to produce a better form of camouflage by injecting particles into the material of soldiers' uniforms. In addition, the military has developed sensor systems that use nanomaterials, such as titanium dioxide, to detect biological agents.
The use of nano-titanium dioxide also extends to the coating to form a self-cleaning surface, such as the surface of a plastic garden chair. A sealed water film is formed on the coating, any dirt will dissolve in the film, and then the next shower will remove the dirt and basically clean the chair.
The price is influenced by many factors including the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events.
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