A cement manufacturer generates $100 million in EBITDA and emits 500,000 tons of CO2 annually. If a new $50 per ton carbon tax is introduced, walk me through the immediate financial impact and how you would adjust your valuation model.

你分析的一家水泥公司每年产生1亿美元EBITDA，排放50万吨二氧化碳。如果政府突然征收50美元/吨的碳税，请带我过一遍这对其财务报表和估值模型的直接影响。