Gardening in a climate change world

Elevated temperatures and rainfall deficits seem to be the norm this year.  Many areas in the East are experiencing drought conditions and above normal temps so far.  In my own little corner of the world, it was so dry and hot on Friday evening I was afraid to harvest ahead for the Saturday morning Farmer's Market.  I usually bunch carrots and beets and wet them down in the evening and they are fine.  But the ground was so dry and it was above 80 degrees at sundown I decided to wait until morning.  Fortunately we got a thunderstorm which dropped a half inch of rain and cooled things off.  The cole crops like broccoli and cauliflower are suffering from the twin perils of high temps and increased flea beetle activity.  Late season lettuce plantings are also showing signs of tip burn.  Now the long  range forecast is for a warm, dry fall.  I think many gardeners will be wondering if the time and effort is worth their while.  The vagaries of weather are a constant concern, but the climate change driven drought and excessive heat are making the investment of time and money increasingly look like a bad bet.