Global warming

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Global Warming
Global Warming is the increase in the average temperature of Earth’s near-surface air and oceans since the mid-20th century and its projected continuation. According tothe 2007 Fourth Assessment Report by the Intergovernmental Panel on Climate Change (IPCC), global surface temperature increased 0.74 + 0.18°C (1.33 + 0.32°F) during the 20th century. Mostof the observed concentrations of greenhouse gases, which result from human activity such as the burning of fossil fuel and deforestation. Global dimming, a result of increasingconcentration of atmospheric aerosols that block sunlight from reaching the surface, has partially countered the effects of warming induced by greenhouse gases.
Recycling
Recycling involvesprocessing used materials (waste) into new products to prevent waste of potentially useful materials, reduce the consumption of fresh raw materials, reduce energy usage, reduce airpollution (from incineration) and water pollution (from landfilling) by reducing the need for "conventional" waste disposal, and lower greenhouse gas emissions as compared to virgin production.Recycling is a key component of modern waste reduction and is the third component of the "Reduce, Reuse, Recycle" waste hierarchy. Recyclable materials include many kinds of glass, paper,metal, plastic, textiles, and electronics.

How Global Warming Affects Wildlife
The key impact of global warming on wildlife is habitat displacement, whereby ecosystems that animalshave spent millions of years adapting to shift quickly. Ice giving way to water in polar bear habitat is just one example of this. Another, accoreding to The Washingtong Post, is thepossibility that warmer spring temperatures could dry up critical breeding habitat for waterfowl in the prairie pothole region, a stretch of land between northem Iowa and central Alberta.
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