use of fossil energy provides greenhouse gases emissions and therefore global warming phenomenon and the incidence of further consequences such as expanding deserts and blasting the dust storms in the middel east, including iran. taking advantage of renewable energy is the most appropriate solution to prevent greenhouse gas emissions. ahvaz region in the southwest of with a population of 133812...

Waste disposal in the current situation, which quantity and variety of waste are increasing, needs not only effective management principles but also depends on environmentally-friendly methods to put as less environmental footprint as possible. This study aims to assess the energy consumption, emission of greenhouse gases and air pollutants which normally produce during various waste management...

Greenhouse gas cycling is an important component of earth system models that are used to project our future climate. Major physical, chemical and biological processes and controls of greenhouse gas cycling are often incorporated into biogeochemistry models of these gases. In particular, the hydrological cycle has long been linked to these models. However, more adequate hydrological models are s...

G reenhouse gases, naturally present at low concentrations in the lower atmosphere , keep the Earth's mean surface temperature at around 15°C. Without this trapping of heat (" radiative forcing ") the mean air temperature would be –18°C and the Earth would freeze. The mechanism of the greenhouse effect is illustrated in Fig. 1. The atmospheric concentrations of greenhouse gases have been increa...

It is widely recognized by scientific communities that human activity is altering Earth’s atmospheric composition and contributing to global climate change. Greenhouse gases (GHG), while naturally occurring elements, absorb and emit radiation within the thermal infrared range1. Activities that emit GHGs, such as transportation, manufacturing, and land use changes, concentrate these gases though...

Riparian forests (RF) growing along streams, rivers and lakes comprise more than 2% of the forest area in the Nordic countries (considering a 10 m wide zone from the water body). They have special ecological functions in the landscape. They receive water and nutrients from the upslope areas, are important habitats for biodiversity, have large soil carbon stores, but may emit more greenhouse gas...

Background: Due to the greenhouse gases emission caused by human activities there is wide agreement about global warming. Methane is one of the most dangerous greenhouse gases in the global warming process which is produced through human activities and natural processes. In addition, the use of fertilizers and chemical pesticides would produce nitrogen monoxide in the atmosphere. This gas is an...