Dr Ian Lewis, Director of Research and Policy at Welsh cancer charity Tenovus, says Public Health Wales and the Welsh Government should "promote the signs and symptoms of lung cancer, so that people present earlier at the GP and are more likely to receive successful treatment".
He says that, in addition to a public awareness campaign, there should be more investment in promoting healthier lifestyles, and particularly quitting smoking.
Lung cancer is the biggest cancer killer in Wales, accounting for 22 per cent of all cancer deaths - and a recent European survey ranked Wales 28th out of 29 countries for survival rates.
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Staying dry and sunny during the afternoon, but feeling cold with a brisk easterly wind.
Dolerw Park in Newtown is closed as police investigate a serious sexual assault that happened in the early hours this morning.
A dry night with clear skies across much of Wales. Temperatures will fall widely below zero, so if you're out and about, wrap up!