Global mean sea level has been rising at an average rate of 1 to 2 mm/year over the past 100 years, which is significantly larger than the rate averaged over the last several thousand years. Projected increase from 1990-2100 is anywhere from 0.09-0.88 meters, depending on which greenhouse gas scenario is used and many physical uncertainties in contributions to sea-level rise from a variety of frozen and unfrozen water sources.
Visit ncdc.noaa.gov/oa/climate/globalwarming
The five New Year’s Days with the highest temperatures occurred in 1876, 1897, 1892, 1890, and 1891, all long before human greenhouse gas emissions could have played a role in changing climate. The one thing we know for sure about the weather is that it is always changing.
Over the last 40 years, we have become more aware of our environment and our impact on it. The movement to bring publicity to environmental issues is known as Earth Day.
The international scientific community, backed up by the Intergovernmental Panel on Climate Change, has reached a clear consensus: rising concentrations of greenhouse gas emissions in our atmosphere are already leading to dangerous climate change. Our children and grandchildren will live in a world of more unpredictable and extreme weather, disrupted natural systems, sea level rise, and new threats to health, food water, and security.
Climate change is the variation in the Earth climate or in regional climates over time. It involves changes in the variability or average state of the atmosphere over durations ranging from decades to millions of years. These changes can be caused by dynamic process on Earth, external forces including variations in sunlight intensity, and more recently by human activities.
Plant A Tree, together we can make DIFFERENCE.
Together, we can make world into Green World.
Each One, plant one tree Only.
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Visit: dell.com/content/topics/global.aspx/corp/environment/en/tree?c=us&l=en&s=corp
“As human-caused biodiversity loss and climate disruption gain ground, we need to keep our sights clear and understand that the measure of a threat is not a matter of whether it is made on purpose, but of how much loss it may cause. It’s an ancient habit to go after those we perceive to be evil because they intended to do harm. It’s harder, but more effective, to “go after,” meaning to more effectively educate and socialize, those vastly larger numbers of our fellow humans who are not evil, but whose behavior may in fact be far more destructive in the long run.”
The international scientific community, backed up by the Intergovernmental Panel on Climate Change, has reached a clear consensus: rising concentrations of greenhouse gas emissions in our atmosphere are already leading to dangerous climate change. Our children and grandchildren will live in a world of more unpredictable and extreme weather, disrupted natural systems, sea level rise, and new threats to health, food water, and security.
Can planting a tree stop the sea level from rising, the ice caps from melting and hurricanes from intensifying?
A new study says that it depends on where the trees are planted. It cautions that new forests in mid- to high-latitude locations could actually create a net warming. It also confirms the notion that planting more trees in tropical rainforests could help slow global warming worldwide.
According to the latest United Nations scientific report, leading scientists around the world agree that man-made greenhouse gases from fossil fuels are causing global warming. Effects are already being seen worldwide. And long-term consequences are devastating, pointing to a darker future each day we fail to act.