When the sun sets sometimes there's a green bar of light at the top of the sun due to atmospheric effects. In extreme cases the whole landscape is painted a shade of green. In my shots the impact is more modest.
exi green flash setting sun bird flying above sun_MG_6559.jpg
green flash on setting sun?_MG_9548.jpg
setting sun with green flash seagulls_MG_6060.jpg
srgb 3 sequence green flash.jpg
ex setting sun green flash two pelicans _MG_4118.jpg