I have brought this up many a time and never get listened to

but any way here go's again
http://www.hse.gov.uk/temperature/outdoor.htm" onclick="window.open(this.href);return false;
Outdoor working
When working outdoors the weather can have an effect on an individual's effectiveness and this is not readily managed using just engineering controls. In these circumstances some of the most effective ways of managing these environments is by introducing some simple administrative controls for example:
Cold environments
Ensure the personal protective equipment PDF issued is appropriate
Provision of mobile facilities for warming up, and encourage the drinking of warm fluids such as soup or hot chocolate
Introduce more frequent rest breaks
Can work be delayed and undertaken at warmer times of the year without compromising on safety
Educate workers about recognising the early symptoms of cold stress.
Hot environments
Reschedule work to cooler times of the day
Provide more frequent rest breaks and introduce shading to rest areas
Provide free access to cool drinking water
Introduce shading in areas where individuals are working
Encourage the removal of personal protective equipment when resting to help encourage heat loss.
Educate workers about recognising the early symptoms of heat stress
Working in the sun
What is the problem?
Too much sunlight is harmful to your skin. A tan is a sign that the skin has been damaged. The damage is caused by ultraviolet (UV) rays in sunlight.
Who is at risk?
If work keeps you outdoors for a long time your skin could be exposed to more sun than is healthy for you. Outdoor workers that could be at risk include farm or construction workers, market gardeners, outdoor activity workers and some public service workers. You should take particular care if you have:
fair or freckled skin that doesn’t tan, or goes red or burns before it tans;
red or fair hair and light coloured eyes;
a large number of moles.
What are the harmful effects?
In the short term, even mild reddening of the skin from sun exposure is a sign of damage. Sunburn can blister the skin and make it peel.
Longer term problems can arise. Too much sun speeds up ageing of the skin, making it leathery, mottled and wrinkled. The most serious effect is an increased chance of developing skin cancer.
What can you do to protect yourself?
Keep your top on (ordinary clothing made from close woven fabric, such as long sleeved workshirt and jeans stops most UV)
Wear a hat with a brim or a flap that covers the ears and the back of the neck.
Stay in the shade whenever possible, during your breaks and especially at lunch time.
Use a high factor sunscreen of at least SPF15 on any exposed skin.
Drink plenty of water to avoid dehydration.
Check your skin regularly for any unusual moles or spots. See a doctor promptly if you find anything that is changing in shape, size or colour, itching or bleeding.
It's only a matter of time till someone get's skin cancer.