As the summer of heat continues, petitions calling for a maximum workplace temperature have exploded. Over 175,000 people have now signed petitions demanding the government takes urgent action to protect workers in the face of more dangerous heatwaves. The increased attention on the issue of workplace safety comes after over 1,000 people including teachers, bus drivers and bakers took part in the first ever national Heat Strike during the unprecedented deadly heatwave in June. Now this week, multiple unions are balloting for better working conditions in heat waves. Bus drivers in North London are threatening to strike unless air conditioning is…