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The Science and Development Network aims to provide reliable and authoritative information about science and technology for the developing world. Their goal is to help both individuals and organizations in developing countries make informed decisions about how science and technology can improve economic and social development.
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The Ebola-poverty link
January 11, 2016 10:06 AM - Abbie Trayler-Smith/Panos, SciDevNet
Last year’s Ebola outbreak spread fastest and was hardest to control in poor communities, says a study which argues that future efforts to combat highly infectious diseases should target such areas.
A paper published in PLOS Neglected Tropical Diseases at the end of 2015 showed that people in poorer parts of Montserrado county in Liberia — which contains the capital, Monrovia — were more likely to both catch Ebola and pass it on than those in wealthy neighbourhoods. Residents in areas of extreme poverty need rapid and high-quality healthcare interventions during outbreaks to contain epidemics quickly, it concludes.
“The paper implies a need for more investment, time and effort spent on improving health and education in urban communities.” Elizabeth Hamann, International Rescue Committee
Toilets Confront Climate Change
January 5, 2016 07:25 AM - Shahani Singh, SciDevNet
Two-and-a-half billion people worldwide have no access to safe, durable sanitation systems. Brian Arbogast, director of the water, sanitation and hygiene programme at the Bill & Melinda Gates Foundation, tells SciDev.Net how innovative toilet technologies and business models could help fix this — and help communities cope with the devastation of climate change.
How does climate change impact sanitation?
With sea levels rising, you have flooding that causes huge health problems. As latrines and septic tanks get flooded and waste goes into the streets and streams, it can carry a lot of disease, including cholera, dysentery and typhoid.
The problem is that the world has only one gold standard for sanitation, which is having flush toilets connected to sewer lines, that are further connected to big and expensive wastewater treatment plants. Growing cities that already have water shortages may not have enough water for everybody to bathe and cook, let alone to flush toilets. So, are these cities going to follow the same path we have taken for the last century in developed cities?
African nations to phase out lead in paint by 2020
December 16, 2015 07:26 AM - Ochieng Ogodo, SciDevNet
African countries have agreed to cooperate in setting limits for use of lead in paints with a view to phasing it out by 2020. This is because of its dangers to human beings, especially to children, and the environment.
Snowfall shift threatens water supply
November 18, 2015 07:17 AM - Safya Khan-Ruf, SciDevNet
Climate change-induced changes in snowfall patterns could imperil two billion people who rely on melting snow for their water supply — and developing countries must work to protect citizens from these variations, researchers say.
How changing land use pattern in the Caribbean is impacting storm risks
August 5, 2015 07:22 AM - JosÃ© Rodriguez-Llanes, Catholic University of Louvain, SciDevNet
Turning natural landscapes in the Caribbean into urban areas or farmland may increase the risk of people dying from floods and storms, scientists suggest.
In a study published by Scientific Reports last month (8 July), researchers from Anguilla’s health ministry and the Catholic University of Louvain in Belgium investigate which factors make the region more prone to deaths related to these disasters. Out of 20 variables, they found that using a greater proportion of land for agriculture and having a higher percentage of people living in urban areas were consistently linked with deadlier floods and storms.
Mapping mosquito data to track spread of disease
July 7, 2015 09:01 AM - Tania Rabesandratana, SciDevNet
Mosquitoes that carry the dengue and chikungunya viruses are more widespread than ever, believe scientists mapping the global spread of the insects. There are no treatments or vaccines for these diseases, so knowing where the mosquitoes that transmit them occur and thrive can help focus research and public health resources, the scientists say.
Nepal deals with climate change
June 25, 2015 02:33 PM - SciDevNet., SciDevNet
On 25 April, Nepal was hit by a 7.8 magnitude earthquake. But as well as quakes, the country is also vulnerable to climate change, a combination that makes it harder to build resilience and risk preparedness.
As mean temperatures rise in South Asia, the monsoon season has changed, leading to more-erratic rainfall and increasing the risk of floods and landslides that can claim lives and wreck food production.
How studying volcanos can improve aviation safety
June 10, 2015 08:36 AM - Paula Leighton, SciDevNet
A study on ash blasted from volcanoes is a first step towards accurately assessing where it is safe to fly during eruptions, according to the authors. The researchers found that the ash grains ejected into the atmosphere have diverse shapes and properties. They also learned that big grains can travel further than was previously estimated. All this could improve existing models of ash concentrations, which governments and airlines use to make flight decisions during eruptions, they say. Ash can cause aircraft engines to fail.
How can we improve plant growth?
April 10, 2015 08:36 AM - Edd Gent, SciDevNet
Supercomputers and genetic engineering could help boost crops’ ability to convert sunlight into energy and tackle looming food shortages, according to a team of researchers. Photosynthesis is far from its theoretical maximum efficiency, say the authors of a paper in Cell, published on 26 March. They say that supercomputing advances could allow scientists to model every stage in the process and identify bottlenecks in improving plant growth.
Road kill: Recommendations to protect biodiversity
March 20, 2015 08:43 AM - Michelle Kovacevic, SciDevNet
Governments and donors must pay more attention to the environmental impact of road networks to limit their “devastating” effect on ecosystems, a study on global infrastructure expansion has warned. Road construction opens a “Pandora’s box” of negative impact, according to the authors of the paper, published this month in Current Biology. These include deforestation, animals hunted to extinction, land grabs by speculators betting on development, and wildfires.