The natural greenhouse effect vs the human enhanced greenhouse effect

 






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Food Systems Under Pressure: Climate and Livelihoods in Africa Recent news highlights how food systems are increasingly under stress globally, with direct implications for Africa and countries like Senegal. One major issue is the impact of extreme heat and climate change on agriculture. A recent UN-backed report warns that rising temperatures are reducing crop yields, stressing livestock, and making it unsafe for farmers to work in many regions, including sub-Saharan Africa . These environmental impacts affect water availability, soil quality, and biodiversity, while also threatening food production systems that are already highly climate-sensitive. In Senegal, where agriculture is largely rain-fed, these risks are particularly significant, making farmers highly vulnerable to climate shocks . A second issue is the growing food insecurity crisis linked to drought, conflict, and economic instability. A recent global report indicates that hunger is increasing, especially in regions like W...
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Climate Change in the news

Global citizen, Climate Change : What you need to know, by Angi Varrial, June 1, 2023 Climate change, generally associated with global warming of the planet, goes beyond an increase in the Earth’s surface temperature. It also involves “alterations in various climate patterns and systems, including precipitation, wind patterns, ocean currents, and the increased frequency and intensity of extreme weather events”. This change is directly linked to human activities since the industrial revolution brought about by developed countries. Unfortunately, people who are most affected by the associate shifts in climate patterns are not the ones responsible for it. Vulnerable populations, living in underdeveloped country (and the most marginalized communities such as indigenous people, women and children) suffer the most from its impacts (2 billion people in 2022 are highly exposed to environmental hazards, IEP). These environmental hazards certainly lead to social crisis. However, we can still act...
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Climate change and the greenhouse effet : What should we understand?

Climate science, like other scientific subjects, helps to set up the basis of the climate context  in which human beings evolve and how their actions impact the meteorological contex, as well as the induced social and environment impacts. From the preindustrial era to the present day, discussions on climate changes and related topics, such as global warming and related have multiplied within the scientific panel.  In 1998, considered to be one of the hottest year, a temperature rise of 0,68°C was recorded (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/global/time-series/globe/land_ocean/ytd/12/1850-1998). This shows that global warming is no longer a theoritical subject, but is creating real environmental hazards such as floods, sea rise, temperature changes and extreme events that affects not only the human systems, but also the earth systems. This is where adapatation and mitigation coud play their part as means of regulating the impact of human activities ...
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