UNESCO is set to discuss the dangers facing Jerusalem's eco-systems, a new UNRWA report elaborates the harm caused to water sources and flora throughout the West Bank, and environmental NGOs warn of the impending extinction of several species – these are the wall's effects on mother nature. Project photography: Oren Ziv / Activestills An event of somewhat historic proportions is about to take place in Saint Petersburg in the coming days: for the first time ever, the annual UNESCO convention is to discuss a request to recognize a world heritage site that was put forward by the Palestinian Authority, which…