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Page 41 - அமெரிக்கன் புவி இயற்பியல் தொழிற்சங்கம் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

How difficult will it be to make buildings in DC more energy efficient? It depends on the building

This article was first published on January 16, 2020. Mitigating climate change is always a major issue in DC and the region, so we wanted to share this article with you again. In December of 2018, the DC Council passed a bill setting a challenge for large buildings across the District to meet new energy code standards by 2026. The law prescribes two different paths: one for new construction and existing buildings performing at or above a median level of energy efficiency scores according to the federal government’s program; another for buildings below that median. The first group would work toward reaching net zero energy, while the second must take steps to raise their efficiency standards. While some buildings in DC have a small gap to bridge, many multi-family affordable housing buildings could struggle to afford the necessary changes.

Vietnam s Massive Hang Sơn Đoòng Cave Has its Own Jungles

Large stalagmites in the passage of Hang Sơn Đoòng cave in Vietnam. The tallest has been measured at nearly 250 feet in height. Wikimedia Commons (CC By-SA 4.0) Here s a helpful earth science mnemonic. Stalactites and stalagmites are both cave features created by mineral deposition. The former dangle, the latter ascend. Or, put another way: A stalactite holds on tight to the ceiling of a cave, whereas a stalagmite might touch the ceiling. might also grow to be over 246 feet (75 meters) tall. Fancy that. Advertisement The cave we re referencing is called Hang Sơn Đoòng. Located in Vietnam s Phong Nha – Kẻ Bàng National Park, it s over 5.5 miles (8.8 kilometers) long overall. That makes Hang Sơn Đoòn one of the biggest caves on the planet.

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