I SPOKE TO A WAKE COUNTY FARMER WHO HAS MADE CHANGES TO HIS FARM. THEY ARE MINIMIZING THE IMPACT. >> Reporter: BEFORE THIS TALL GLASS OF CRAFT BEER ENDS UP HERE, IT GETS STARTED HERE, IN THE HEART OF WAKE COUNTY. BARLEY GREENS BLANKET THE FIELDS OF PERRY FARMS. >> WHAT WE DO IS FOR THE LONG HAUL. >> Reporter: TIM COLE SAYS THE FARM IS MOVING AWAY FROM INDUSTRIAL FARMING AND USING AN OLD-SCHOOL PLANTING METHOD, IT IS MORE SUSTAINABLE. >> YOU ARE KEEPING THESE ORGANISMS LIVING AND THRIVING AND THAT HELPS BOOST YOUR CROSS CROP YIELDS. >> Reporter: SOIL STORES CO2. WHEN THE FARMERS TELL THE FIELD, THAT CO2 IS BEING RELEASED BACK INTO THE ATMOSPHERE. WHAT THEY ARE DOING IS A PRACTICE WITH NO TELL. THAT IS BEING STORED AND NOT RELEASED BACK INTO THE ATMOSPHERE. >> WE KEEP THE ORGANIC MATTER IN THE SOIL KEEPING THE CARBON IN THE GROUND REDUCING THE AMOUNT OF NITROGEN WE HAVE TO USED TO FERTILIZE. >> Reporter: SEBASTIAN WOLFRAM SAYS -- >> -- WHAT WE HAVE IS GERMINATING VOLUME. >> Reporter: TO KEEP THEIR CHAPS FOLLOWING IN THE FUTURE, NOW IS THE TIME TO ACT. >> AND IT WILL ONLY WORK IF THE CLIMATE STAYS SOMEWHAT STABLE. IF WE CONTINUE ON THIS PATH, IT WILL NOT WORK OUT. IT IS ALREADY CHALLENGING SO TALKING TO MY FARMERS ABOUT CHANGING SOME OF THESE PRACTICE IS NOT A COMPLICATED CONVERSATION. THEY ALL KNOW HOW MUCH