Below a paragraph is given followed by five sentences. Identify which sentence/s can be the correct sentence of the paragraph to make the paragraph completed and coherent.
Buildings are one of the leading contributors to carbon emission, mainly from their use of fossil fuels during operations. In fact, cities and urban areas are responsible for approximately 75 percent of carbon emissions. (...........) . Thankfully, with an increased focus on the hazards that buildings emit into the atmosphere, companies are starting to consider adopting greener initiatives. Cities worldwide are investing in climate action plans with the goal of reducing their environmental footprint.
1
Integrating sustainable resources that are long lasting is key to ensuring that a structure is fully sustainable.
2
Creating an environmentally responsible building begins with an understanding of the current systems that negatively impact the environment, such as heating and cooling, and finding alternatives that will decrease the impact.
3
To be able to create these buildings, end users and investors need to both understand and value the chosen solution.
4
If these buildings continue to be developed and run in the traditional manner, the environmental damage will only progress.
5
'Smart City' initiatives to better manage existing infrastructure, zero waste policies, alternative energy sources, and researching the potential of developing net zero buildings.