How can I create a bar graph on global warming?

Method 1, visit this site: Climate.gov, make selections print graph: Method 2: download the data as a .csv file, import to a spreadsheet, make a bar chart. To get the data visit one of these sites and look in the footnotes foot links to data. read more

NASA has done a number of charts including its chart of CO2 levels over the past 400,000 years. The inertia built into earth systems as a result of runaway warming causes some interesting chart activity. read more

A single year can see its temperatures rocket for reasons having little to do with climate change. Look, instead, at decades. There, the data is a little clearer, as the idiosyncrasies of any one year are balanced by its nine compatriots. read more