Recycling one stack of newspapers about 6 feet tall saves the life of one tree 35 feet tall.
Recycling approximately 1 ton of newspaper saves 17 trees.
Recycling approximately 1 ton of newspaper saves 17 trees.
'n Ongemaklike waarheid…
Vra enige iemand wat die hoofoorsaak van globale verwarming is en die antwoord sal 9 uit 10 kere wees : die vrystelling van koolstofdioksiedgas. Die waarheid is egter dat daar 'n gas is waarvan die bydra tot globale verwarming 20 keer meer is as díe van CO2 – metaangas (CH4)!
Metaangas (CH4) is 'n kweekhuisgas wat gevorm word deur verrotte plantmateriaal en uitgeskei word deur veediere. Huidiglik word daar 'n kommerwekkende hoeveelheid CH4 vrygesel deur die smeltende Arktiese Oseaan.
Die volgende is 'n uittreksel uit 'n artikel wat in die tydskrif Yale Environment 360 (e360.yale.edu) in Oktober 2008 verskyn het:
“Until 2003, concentrations of methane had remained relatively stable in the Arctic Ocean and the atmosphere north of Siberia. But then they began to rise. This summer, scientists taking part in the six-week International Siberian Shelf Study discovered numerous areas, spread over thousands of square miles, where large quantities of methane — a gas with 20-times the heat-trapping power of carbon dioxide — rose from the once-frozen seabed floor.
One thing is certain: the shallow Siberian Shelf alone covers more than 1.5 million square kilometers (580,000 square miles), an area larger than France, Germany, and Spain combined. Should its permafrost layer thaw, an amount of methane equal to 12 times the current level in the atmosphere could be released, according to Shakhova. Such a release would cause “catastrophic global warming,” she recently wrote in Geophysical Research Abstracts. Among the many unanswered questions is how quickly — over years? centuries? — methane releases might occur.
Disappearing Arctic sea ice — summer ice extent was at its lowest level in recorded history in 2007 and almost hit that level in 2008 — also will warm the Arctic Ocean, since a dark, ice-free sea absorbs more solar radiation than a white, ice-covered one. In addition, warmer waters are pouring in from rivers in rapidly warming land regions of Alaska, Canada, and Russia, also increasing sea temperatures.”
Vra enige iemand wat die hoofoorsaak van globale verwarming is en die antwoord sal 9 uit 10 kere wees : die vrystelling van koolstofdioksiedgas. Die waarheid is egter dat daar 'n gas is waarvan die bydra tot globale verwarming 20 keer meer is as díe van CO2 – metaangas (CH4)!
Metaangas (CH4) is 'n kweekhuisgas wat gevorm word deur verrotte plantmateriaal en uitgeskei word deur veediere. Huidiglik word daar 'n kommerwekkende hoeveelheid CH4 vrygesel deur die smeltende Arktiese Oseaan.
Die volgende is 'n uittreksel uit 'n artikel wat in die tydskrif Yale Environment 360 (e360.yale.edu) in Oktober 2008 verskyn het:
“Until 2003, concentrations of methane had remained relatively stable in the Arctic Ocean and the atmosphere north of Siberia. But then they began to rise. This summer, scientists taking part in the six-week International Siberian Shelf Study discovered numerous areas, spread over thousands of square miles, where large quantities of methane — a gas with 20-times the heat-trapping power of carbon dioxide — rose from the once-frozen seabed floor.
One thing is certain: the shallow Siberian Shelf alone covers more than 1.5 million square kilometers (580,000 square miles), an area larger than France, Germany, and Spain combined. Should its permafrost layer thaw, an amount of methane equal to 12 times the current level in the atmosphere could be released, according to Shakhova. Such a release would cause “catastrophic global warming,” she recently wrote in Geophysical Research Abstracts. Among the many unanswered questions is how quickly — over years? centuries? — methane releases might occur.
Disappearing Arctic sea ice — summer ice extent was at its lowest level in recorded history in 2007 and almost hit that level in 2008 — also will warm the Arctic Ocean, since a dark, ice-free sea absorbs more solar radiation than a white, ice-covered one. In addition, warmer waters are pouring in from rivers in rapidly warming land regions of Alaska, Canada, and Russia, also increasing sea temperatures.”
