ºÝºÝߣ

ºÝºÝߣShare a Scribd company logo

Facts about global warming

•Download as PPTX, PDF•
•
Marites Hugo
Marites Hugo

- The average temperature on Earth would be 5°F without the greenhouse effect from the atmosphere. - CO2 levels in the atmosphere have varied historically between 180-300 ppm but are now around 380 ppm, a 25% increase over the highest natural levels. - In 1997 alone, CO2 in the atmosphere increased by 2.87 ppm, more than any other year on record.

1 of 15
Download to read offline
Facts about global warming
Critical Facts About . . . Global Warming
• Without the atmosphere to create a greenhouse- type effect, the average temperature on Earth would be just 5° Fahrenheit (F).g
• Natural levels of CO2 in the atmosphere have varied throughout history between 180 and 300 parts per million (ppm). Today’s CO2 levels hover around 380 ppm, representing a 25% increase over the highest recorded natural levels.b
• In the year 1997 alone, the concentration of CO2 in the atmosphere increased by 2.87 ppm; this increase is more than any other year on record.a
• The year 2005 was the warmest on record, and the years 1998 and 2007 are tied for the second warmest. The eight warmest years on record have all occurred since 1998.a
• Scientists expect a 3.5° F increase in average global temperatures by the year 2100, resulting in the warmest temperatures in the past million years. During the Pliocene epoch 1.8 million years ago, when the earth’s temperatures were roughly equivalent to today, sea levels were 12-18 feet higher.a
Interesting Facts About . . . Recycling
• Modern garbage is a relatively new phenomenon- -a result of industrialization, mass production, and consumption.e
• Plastic bags are easier to recycle and require less energy to produce than paper bags.h
•Recycling one aluminum can saves enough energy to run a television for three hours. h
• Nearly 50 million tons of e- waste (electronic waste such as cell phones and computers) is created each year around the world. This is enough to fill a line of garbage trucks across half the globe.f
• Cigarette butts and filters take 12 years to biodegrade. An aluminum can takes between 200 to 500 years to biodegrade. Plastic diapers and sanitary pads take between 500-800 years. Styrofoam takes more than 5,000 years. And it would take a glass bottle 1 million years to biodegrade.h
Facts about global warming
Facts about global warming

More Related Content

Facts about global warming

  • 2. Critical Facts About . . . Global Warming
  • 3. • Without the atmosphere to create a greenhouse- type effect, the average temperature on Earth would be just 5° Fahrenheit (F).g
  • 4. • Natural levels of CO2 in the atmosphere have varied throughout history between 180 and 300 parts per million (ppm). Today’s CO2 levels hover around 380 ppm, representing a 25% increase over the highest recorded natural levels.b
  • 5. • In the year 1997 alone, the concentration of CO2 in the atmosphere increased by 2.87 ppm; this increase is more than any other year on record.a
  • 6. • The year 2005 was the warmest on record, and the years 1998 and 2007 are tied for the second warmest. The eight warmest years on record have all occurred since 1998.a
  • 7. • Scientists expect a 3.5° F increase in average global temperatures by the year 2100, resulting in the warmest temperatures in the past million years. During the Pliocene epoch 1.8 million years ago, when the earth’s temperatures were roughly equivalent to today, sea levels were 12-18 feet higher.a
  • 8. Interesting Facts About . . . Recycling
  • 9. • Modern garbage is a relatively new phenomenon- -a result of industrialization, mass production, and consumption.e
  • 10. • Plastic bags are easier to recycle and require less energy to produce than paper bags.h
  • 11. •Recycling one aluminum can saves enough energy to run a television for three hours. h
  • 12. • Nearly 50 million tons of e- waste (electronic waste such as cell phones and computers) is created each year around the world. This is enough to fill a line of garbage trucks across half the globe.f
  • 13. • Cigarette butts and filters take 12 years to biodegrade. An aluminum can takes between 200 to 500 years to biodegrade. Plastic diapers and sanitary pads take between 500-800 years. Styrofoam takes more than 5,000 years. And it would take a glass bottle 1 million years to biodegrade.h