  A new line list for ethylene, $^{12}$C$_2$$^1$H$_4$ is presented. The line
list is based on high level ab initio potential energy and dipole moment
surfaces. The potential energy surface is refined by fitting to experimental
energies. The line list covers the range up to 7000 cm$^{-1}$ (1.43 $\mu$m)
with all ro-vibrational transitions (50 billion) with the lower state below
5000 cm$^{-1}$ included and thus should be applicable for temperatures up to
700 K. A technique for computing molecular opacities from vibrational band
intensities is proposed and used to provide temperature dependent cross
sections of ethylene for shorter wavelength and higher temperatures. When
combined with realistic band profiles (such as the proposed three-band model),
the vibrational intensity technique offers a cheap but reasonably accurate
alternative to the full ro-vibrational calculations at high temperatures and
should be reliable for representing molecular opacities. The C$_2$H$_4$ line
list, which is called MaYTY, is made available in electronic form from the CDS.
