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Viewpoint: Atmospheric rivers an increasing reality of climate change

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An atmospheric river in November 2021 led to flooding through the Sumas Prairie. (File photo)

The term 香蕉视频直播渁tmospheric river香蕉视频直播 came up earlier this week in the newsroom after warmer temperatures and heavy rainfall triggered a flood watch in the Lower Mainland.

Comments in-house about the phenomena were not favourable, as the Shuswap and other parts of the province also experienced seemingly unseasonable warm, wet weather that no doubt diminished snowpack levels which, as of Jan. 1, were considered by B.C.香蕉视频直播檚 environment ministry to be 香蕉视频直播渆xtremely low.香蕉视频直播

Many British Columbians became familiar with the term during the extreme wet weather of November 2021 that led to devastating floods and landslides that killed five people.

For those who don香蕉视频直播檛 know, the term 香蕉视频直播渁tmospheric river香蕉视频直播 was coined in the U.S. in 1998, and refers to 香蕉视频直播渓ong narrow streams of high water vapour concentrations in the atmosphere that move moisture from tropical regions towards the poles across the mid latitudes.香蕉视频直播 This is according to the Atmospheric Rivers State of Knowledge Report, released by the Pacific Climate Impacts Consortium, the Pacific Institute for Climate Solutions and B.C.香蕉视频直播檚 environment ministry.

The same report notes that as the planet continues to warm, we can expect atmospheric rivers and other extreme events to 香蕉视频直播渋ntensify, move northward and become more frequent over time.香蕉视频直播

While B.C. continues to see more rain than snow, another part of the world known for its rainy season this time of year is in the midst of a destructive record drought.

December to May is normally the wet, rainy season in the Amazon Basin; however, according to scientists, an ongoing drought has drained rivers, resulted in the death of endangered dolphins and has upended the lives of millions of people. A report by said scientists points to poor land, water and energy management practices and climate change 香蕉视频直播 not El Ni帽o 香蕉视频直播 as culprits.

Back in B.C., don香蕉视频直播檛 let all the rainfall fool you. Last year was one of the driest on record for much of the Interior, and Environment Canada doesn香蕉视频直播檛 expect this winter香蕉视频直播檚 precipitation will do anything to alleviate the long-term drought conditions we香蕉视频直播檝e been experiencing.

Regardless of where you stand on climate change, or atmospheric rivers, as an Environment Canada meteorologist puts it, 香蕉视频直播渘ot having snowpack is going to be potentially very problematic going forward.香蕉视频直播 Particularly as we transition into summer/fire season, and potentially more record-breaking temperatures.

Lachlan Labere is the editor with the Salmon Arm Observer.

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