Expressed in pseudocode:
 If ((year modulo 4 is 0) and (year modulo 100 is not 0)) or (year modulo 400 is 0) Then
  leapYear = true
 Else
  leapYear = false
 End if

This is a list of all the leap years in the 20th and 21st centuries:
1904, 1908, 1912, 1916, 1920, 1924, 1928, 1932, 1936, 1940, 1944, 1948, 1952, 1956, 1960, 1964, 1968, 1972, 1976, 1980, 1984, 1988, 1992, 1996, 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036, 2040, 2044, 2048, 2052, 2056, 2060, 2064, 2068, 2072, 2076, 2080, 2084, 2088, 2092, 2096

Oops, I almost messed up the weather downscaling results by not taking care of leap years..

OMG, this is so hilarious (although I don't get more than half of the story - still funny).

We now believe that Monsanto has control over as much as 90 percent of (seed genetics). This level of control is almost unbelievable," said Neil Harl, agricultural economist at Iowa State University who has studied the seed industry for decades. "The upshot of that is that it's tightening Monsanto's control, and makes it possible for them to increase their prices long term. And we've seen this happening the last five years, and the end is not in sight.

Oh, Monsanto. Monsanto...

The Carvedilol Hibernation Reversible Ischaemia Trial Marker of Success. Oh, come on people.. :p