Actualité
food security crises in africa’s megacities – crise sanitaire en afrique
How to avoid food security crises in Africa’s megacities Africa’s urban population has grown from 100 million to 560 million in 40 years, driving rapid demand for food imports. It is this high reliance on imports that increases vulnerability to global supply shocks. So when extreme weather, political instability or fuel price spikes hit at once, Africa's megacities could face disrupted food supplies, rising hunger and social unrest. Here's what Africa's megacities can do to strengthen food security: Stress-test global food supply systems: Coordinating governments, grain traders and...
plastic pollution- pollution plastique
How climate change is reshaping the global #plastic pollution crisis Climate change is actively reshaping how plastics behave in the environment, making them more mobile, persistent and harmful across ecosystems. Plastic pollution and climate change share common roots in fossil fuel-based systems. Most plastics are produced from oil and gas, and greenhouse gases are emitted throughout their life cycle. As global plastic production has increased dramatically since the mid-20th century, so too have the life cycle emissions of plastics, as the chart below shows. Comparison of global mean...
Itinéraires vers les Antilles des algues cancérigènes, les Sargasses
les Sargasses (algues cancérigènes) susceptibles de se charger en métaux lourds...