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A new report says there's more evidence than ever that humans are causing global warming. Here's a look at climate change by the numbers.
The United Nations has released a benchmark study on climate change that further strengthens the suspicions many scientists already have -- that humans are making the Earth warmer which, in turn, is having disastrous impacts on everything from weather to sea levels.
April 15 is approaching. You may know how to fill out a basic tax return (or hand over the necessary paperwork to your accountant), but how much do you really know about doing taxes? Find some tax resources and test your knowledge here.