The environment of Iran is constantly changing in recent years and this issue cannot be ignored. Of the critical environmental crisis should refer to global warming, overcrowding, decreasing natural resources, garbage disposal, ozon layer destruction, deforestation, rainfalls, water pollution, public health issues, and genetic engineering. Men around the Iran are experiencing new and challenging environmental problems daily. Some of these problems are likely to affect the health of the ecosystem, but somehow they change the recent landscapes. The planet is on the verge of a massive environmental crisis. Environmental problems in Iran also make human beings vulnerable to natural disasters occurs currently and in the future, as well. So due to the growing problems of the environment in Iran, this is an emergency situation. Therefore, the current environmental situation greatly needs urgent consideations and many factors to be addressed. By increasing community awareness and concern about issues, it can help to create a more friendly environment conscious for survival.

The present study investigates the reliability of Remote Sensing (RS) and Geographical Information System (GIS) in monitor and management of vegetation resources for sustainable development. Vegetation change is a major environmental problem experienced in different land use types particularly in lands under uncoordinated practices.. Landsat MSS satellite images, Landsat Operational land imager and field survey were used. Results revealed that woodland (6.5%) and crop/bare land (8.1%) experience a steady decreasing trend. Moreover, annual rate of change for crop/bare land is alarming culminating to about plus 50% during the study, while that of woodland and grassland has been minus 15.59 and 3.9%, respectively. This clearly suggests that vegetation resource in the study area is rapidly decreasing and therefore needs urgent attention. Hence, due to crucial importance of vegetation cover in the provision of food, shelter, wildlife habitat, fuel, daily supplies of medicinal ingredients and paper, forest resources management using geospatial tools is highly indispensable for sustainable development.

The Today, synthetic products such as industrial waste, pesticides, batteries, paints, and industrial or domestic sludge widely applied, as well as and manufacturing can adversely result in heavy metal contamination of urban and agricultural soils. Simultaneously, by growth of industrialization and urbanization, the environmental safety of soil has become of great concerns. Based on investigating the status of soil contamination, the remediation technologies of soil contaminated by heavy metals were focused in the present study. To this aim, physical remediation, chemical remediation and biological remediation were all paid attention. To supply required references to the present study, the mechanisms of remediation, strengths and drawbacks developing trend were discussed. It is proposed that for effective and economic remediation of soil, a better understanding of remediation procedures and the various options available at the different stages of remediation is highly necessary.

Niger River Delta located in Nigeria supplies the economic necessities which situates it firmly in the Comity of Nations and sustains its enviable position in the world map as Africa’s largest economy and the most endowed country of the world. Over the years, this natural endowment which expectedly should have enhanced the regional peoples’ welfare (not neglecting other regions though) has unfortunately become a trouble. To say that the Niger Delta is suffering would be such a mild interpretation to the gross disaster which has been plaguing not just its human population but other inhabitants–all living creatures–of all other habitats. This investigation focuses on the health hazards associated with environmental pollution in the region. It concludes that these hazards can be contained through a series of recommendations which include financial confederalism and upward review of revenue allocation to the region.