Research about environmental changes, for example changes in CO2 emissions and changes in temperature.

1. Environmental
changes

2. #1
Changes in
2
CO emission

3. http://www.ted.com/talks/bill_gates.html

4. http://www.ted.com/talks/bill_gates.html

5. Average CO2 emission
per person each year:
5 tons
http://www.ted.com/talks/bill_gates.html

6. World GDP and CO2
http://www.sustainablescale.org/areasofconcern/ClimateChange/ClimateChangeandScale/ScaleProblem.aspx

7. http://www.ted.com/talks/bill_gates.html

8. http://www.economist.com/blogs/graphicdetail/2013/01/daily-chart-11

9. Eco-city ranking
http://www.mercer.com/qualityoflivingpr#Ranking_Eco_Cities

10. #2
Changes in
temperature

11. Global temperature is increasing
http://www.nasa.gov/topics/earth/features/2011-temps.html

12. http://data.giss.nasa.gov/gistemp/graphs/Fig.A2.lrg.gif

13. The change in global temperature in the
past 150 years is much greater than
anything we saw in the past 11,000 years
http://online.wsj.com/article/SB10001424127887323628804578346140587268534.html

14. Temperature on earth the last 100,000 years
http://youtu.be/CqJL-cM8gb4 minute 5.

15. Predicted temperature increases
http://www.mod.uk/NR/rdonlyres/D70F2CC7-5673-43AE-BA73-1F887801266C/0/20100202GST_4_Global_Strategic_Trends_Out_to_2040UDCDCStrat_Trends_4.pdf, p.
105.

16. The 2010 data confirm the earth's
significant, long-term warming trend
http://www.time.com/time/quotes/0,26174,2043495,00.html

17. #3
Changes in
water level

18. http://youtu.be/grZSxoLPqXI

19. #4
Vegetation
around the world

20. Vegetation on earth
Sources
http://www.universetoday.com/103072/herbal-earth-spectacular-vegetation-views-of-our-home-planet-and-the-natural-world-of-living-green-life/
http://twistedsifter.com/2013/08/maps-that-will-help-you-make-sense-of-the-world/

21. http://en.wikipedia.org/wiki/Vegetation

22. Use of phosphorus, an essential plant nutrient,
around the world
http://www.sciencedaily.com/releases/2011/02/110203124814.htm