Related Clues:

• The weather is something to do with the mountain, by the sound of it
• Depending on the weather, I get married at last
• I may get married after a century and a half; it all depends on the weather
• After a century and a half I get married, weather permitting
• Depending on the weather I may get married after a century and a half
• It depends on the weather if I get married at last
• Its changes can be dangerous
• Pattern of highs and lows
• Pollution legislation goal
• The atmosphere at 1:51, pal!
• Weather conditions of a region
• Alec and I ran about in pollution-free conditions
• Atmospheric conditions
• Long-term weather conditions
• 151 + 1000 + 8, say? That's the spirit