The paper reviews environmental policies and strategies in the Nigerian oil and gas industry sector, assessing its efficiency, challenges and prospects. Essentially, the study established that the Environmental Policies and Strategies of Nigeria Oil and Gas Industry have impacted positively on the Nigerian environment over the years, especially in the area of awareness creation for all stake-holders. In terms of challenges, inefficiency of the regulators due to inadequacy of logistics, poor environmental data base, duplication and overlaps of regulators functions are some of the challenges identified. The prospect of environmental policies and strategies in Nigeria is generally considered to be bright, considering the fact that the industry is still evolving. Relevant recommendations were made on how to achieve improvements.

The objectives of the study were to determine distribution of heavy metal contamination in water, sediments and biota (Callinectes amniciola) of the upper reaches of the Bonny Estuary and to determine the impact on physicochemical characteristics of the water body. Sampled was from January to June 2020. The physicochemical parameters of the water varied slightly across the months but were within FEPA/WHO (2003) acceptable limits. Furthermore; the study compared the seasonal variations and determination of Bio-accumulation Factor (BF) of C. amnicola with respect to sediment. The study site is a tidal creek that drains into the main Bonny River channel within Niger Delta, Nigeria. The sampled locations/stations include Trans-Amadi slaughter in Azuabie {N4°81'49.9 and E7°04'63.4}, Okpoka Creek in Abuloma {N4°78'02.43 and E7°06'66.12} and Okirika Jetty {N4°73'70.04 and E7°09'56.93}. Samples of surface water, sediments and swimming crabs were collected from three different stations which were at least 1000 meters apart. The results of this study show that concentrations of the heavy metals (Fe and Zn) were both higher in the three media than the approved limits prescribed by the local regulatory authority. Although Cu was relatively within acceptable limit in the three media. There is therefore the need to control the anthropogenic activities within or around the river. This will help to prevent effluent and solid waste discharges that lead to increase in the concentration of heavy metals in the aquatic environment. Routine monitoring should be encouraged to identify the major sources of heavy metals introduction into the river and their impacts on the aquatic resources.

The study discusses the impact of climate change on aquatic lives in the Niger Delta region. To realise this, the study basically adopted a library search design of reviewing literatures of climate change impact on aquatic lives in the Niger Delta region. Meteorological data (rainfall, temperature and humidity) were also extracted from literatures to explain the evidence of climate change in the areas. The meteorological data showed that, temperature, rainfall and humidity have changed over the last 10 years. This change translates to climate change because it is at least up to a decade (10-year period), and it showed a 1.5˚C rise in temperature from 2003 to 2013 and an increase of 342.2 mm in the amount of rainfall in Niger Delta. These clearly paint the picture of global warming. Furthermore, in the same period, there was a decrease of 9% in the amount of humidity in the area. Thus, it is very clear that the climate is changing over time within this region. This certainly has some effects on the aquatic Fauna in the region. In fact, for the next 10 years, the aquatic fauna that now inhabit various habitats may no longer be able to adapt to the changes, leading to their extinction and total elimination from the habitats in question. And as such, these aquatic fauna will either modify their body structure and function in order to tolerate the change in climate, migrate to new and comfortable habitat or even stand the risk of becoming extinct. To abate the impact of climate change in the region, introduction of new water management reform and policy implementation, and carbon sequestration amongst others were recommended. This electronic document is a "live" template. The various components of your paper [title, text, heads, etc.] are already defined on the style sheet, as illustrated by the portions given in this document.

Little is known about the full impacts of marine litter, especially in the open ocean where there is almost no information. The ocean is a vital source of nourishment, especially to the people in the world's poorest nations. Many depend on fish for their source of protein; fisheries and aquaculture support the livelihoods of about 540 million people directly or indirectly [1]. Overfishing, loss of biodiversity and possible extinction of species put stress on these limited resources. Some beaches are already closed to public because the water is unsuitable for bathing and beach is covered with litters of plastics, discharge of sewage, agricultural run-off, and discharge of nutrients and pesticides accounts for approximately 80% of marine pollution [2]. The scenario is not different in Nigeria as there are reported cases of major industries such as fertilizer and petrochemical and oil producing companies that have polluted the marine environment in recent times. Therefore, this paper advocates by way of education and enlightenment to the populace the myriad of problems associated with marine pollution in the Nigerian coastal waters. Some suggested solution includes education, laws and collaboration amongst organization to create a sustainable marine ecosystem in Nigeria.

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