Climate change incorporation in environmental assessment is a growing research area, particularly following the Paris agreement. Environmental Impact Assessment (EIA) is considered in many quarters to be an important tool in factoring climate-related components in the planning and design of a project. However, many recent researches have shown that EIA has, so far, struggled in the attempt to incorporate climate change into its procedures. This study is an attempt to evaluate the level of consideration of climate change in the EIA process in Nigeria, with particular focus on the Niger Delta region. The result of this quantitative research shows that there is a poor political will to address climate change, as reflected in the absence of climate change requirements in the EIA guidelines of Nigeria. Although, there is a growing trend in the pattern of consideration of climate change in the EIA procedures, the overall level of consideration is still a far cry from the requirements if EIA is to be considered to be an important tool in addressing challenges of climate change in Nigeria.
This study was carried out in the Cheliff estuary and adjacent coastal areas to determine in particular the impact of environmental stress on the biodiversity of the Western-Algerian littoral Polychaeta, with the motive to analyze the health status of the marine ecosystem as bio-indicator species of pollution. Monitoring took place in five stations (Sokhra, Hadjaj, Salamandre, and Sonactere) during the wet and dry seasons in 2014 respectively, including Cheliff estuary as a reference site and the other four coastal sites. We detected in total, four taxa comprising 392 individuals. The taxa having the highest frequency rate were Nereis virens (62%), Nereis diversicolor (58%), Nereis falsa (43%), and Nereis pelagica (51%). We noted low Polychaeta abundances in Sokhra and Hadjaj stations, in the Eastern area of Cheliff Estuary with a high pH, OS, DO, and Chlorophyll “a”. Cheliff Estuary has high nutrients, N. diversicolor, and N. virens values. The sites Salamandre and Sonactere in the Western part of the Cheliff Estuary have high BOD, COD, PO4, suspended solids, turbidity, N. pelagica, and N. falsa. The data monitoring and analysis of the stations based on similarities of Annelida communities show the link between the components of the environment and the biodiversity abundance.
In recent years, development has been witnessed in the market expansion of agricultural inputs and products including substances and materials that improve the functioning of the soil, plants, and the interactions between soil and plant. This is a very broad category of products and substances that often bring innovative solutions in the field of fertilization and crop protection. The objective of this study is to improve the production of the market garden where tomato plants in nurseries from powders of two green algae Ulva lactuca and Ulva intestinalis, harvested as biofertilizers in the west coast of Mostaganem province at North-Western Algeria. They have minimal effects on the environment, including soil, subterranean water, river, and estuary ecosystems such as the Cheliff river, biodiversity, and global warming. The experimental part was carried out following the method of extraction of algae and used as a biofertilizer on the tomato to its simplicity and accuracy, which is the subject of the study of the germination, growth, and the development of young plants. The results show that the powders obtained from the Ulva lactuca algae and used as biofertilizers are the most suitable to increase the growth of plants in the case of tomato in our study, which means a remarkable increase in stem length by compared to the other treatments with averages of 17.75 cm, 16 cm length of stem/plant, while the other treatments (Enteromorpha intestinalis, mixture, and reference) gave 14.75; 13.87; 13.65 cm length of stem/plant.
Fossil fuel such as coal, natural gas, oil and recently shale gas are perhaps the most economically viable means for energy generation but are laden with inexhaustible environmental consequences. Thus, biofuel development has received tremendous support from all quarters in response to quest for energy security and clean energy. However, the rapid rate of development of bioenergy has also raised concern chiefly for its nexus with food security with some scholar considering it a disaster especially for countries in the global south. Due to her prime location along the equator, and the generally favourable climatic conditions all through the year, Nigeria is considered to have enormous potential for bioenergy development. Unfortunately, Nigeria is also highly ranked in the 2018 Global Hunger Index (GHI) of International Food Policy Research Institute (IFPRI). Rested mainly on exploratory approach, this study analyses the bioenergy potential of Nigeria and the implications of the fast-rising market on food security in the Nigerian context. Critical investigation on the food crop-bioenergy trade-offs was conducted while bioenergy development implications were analysed in the context of the four dimensions of food security. Lastly, mitigative measures to bioenergy development impacts were discussed and one key proposition is need to strengthen the second and third generation technology for biofuel production in Nigeria.