Very easy song, good one to practice singing along while playing.  Shouldn't need the chord diagrams... 
 
Intro/Verses: 
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d---2-/-4-4-4-4-4--3-/4-4-4-4-4--2-/-4-4-4-4-4---3-3-3-3-3-------- |   
a---5-/-5-5-5-5-5--3-/3-3-3-3-3--2-/-2-2-2-2-2---1-1-1-1-1-------- |   
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Intro:(just play the riff x1) 
 
Verse 1:(play riff x2) 
I watch as the daylight crawls 
past the shadows hanging on the walls 
it's been a long time since I felt THE STAIN 
OF yesterday getting in my way 
 
 
      G5             D5          A5 
Chorus:      I'm alive but tell me am I free 
                  G5            C5 
      I got eyes but tell me can I see 
                G5            A5      D5 
      The sky is falling and no one knows 
      G5           D5              A5 
      It shouldn't be hard to believe 
                     G5             C5 
      Shouldn't be this difficult to breathe 
                G5            A5      D5 
      The sky is falling and no one knows 
 
Verse 2:(play riff x2) 

YOU leave me hanging on 

I need to catch my breath 

I've got you and I've got nothing left 

don't leave me all alone down here 

with myself and all of my fear 
 

      G5             D5          A5 
Chorus:      I'm alive but tell me am I free 
                  G5            C5 
      I got eyes but tell me can I see 
                G5            A5      D5 
      The sky is falling and no one knows 
      G5           D5              A5 
      It shouldn't be hard to believe 
                     G5             C5 
      Shouldn't be this difficult to breathe 
                G5            A5      D5 
      The sky is falling and no one knows 
      G5    A5      D5 
      No one knows 
      G5    A5      D5 
      No one knows 
 
Bridge:      
A5  C5  G5  D5  A5 C5 G5 (sorry no timing) 
 
      G5             D5          A5 
Chorus:      I'm alive but tell me am I free 
                  G5            C5 
      I got eyes but tell me can I see 
                G5            A5      D5 
      The sky is falling and no one knows 
      G5           D5              A5 
      It shouldn't be hard to believe 
                     G5             C5 
      Shouldn't be this difficult to breathe 
                G5            A5      D5 
      The sky is falling and no one knows