The Po (Latin: Padus, Italian: Po, ancient "Eridanus") is a river that flows 652 kilometers (405 miles) eastward across northern Italy, from Monviso (in the Cottian Alps) to the Adriatic Sea near Venice. It has a drainage area of 71,000 km² and is the longest river in Italy.
|- location||Cottian Alps, Italy|
|- elevation||3,700 m (12,100 ft)|
|- elevation||0 m (0 ft)|
|Length||652 km (405 mi)|
|Basin size||71,000 km2 (27,000 sq mi)|
|- average||1540 m³/s|
It goes through many important Italian towns, including Turin (Torino) and (indirectly) Milan (Milano), in Lombardy. It is connected to Milan through a net of channels called navigli, which Leonardo da Vinci helped design. Near the end of its course, it creates a wide delta (with hundreds of small channels and five main ones, called Po di Maestra, Po della Pila, Po delle Tolle, Po di Gnocca and Po di Goro) at the southern part of which is Comacchio, an area famous for eels. The Po valley corresponds to the Roman Cisalpine Gaul, divided in Cispadane Gaul (South of the Po) and Transpadane Gaul (North of the Po).
The vast valley around the Po is called Pianura Padana and is so efficiently connected by the river that the whole valley became the main industrial area of the country. This river is subject to the authority of a special authority, the Magistrato delle Acque.
Roman poets sometimes referred to the Po river as Eridanus, which also has other meanings.
The main products of the farms around the river are cereals.
In 2005, water from the Po was found to contain "staggering" amounts of benzoylecgonine, which is excreted by cocaine users in urine. Based on these figures, cocaine consumption was estimated to be about 4 kg daily, or 27 doses per day per thousand young adults in areas that feed into the river—a number nearly three times higher than previous estimates.
On May 4, 2007 The river dried up in spots completely. Italy declared a state of emergency in the northern and central regions. The Alps had reduced snowfall the previous winter. It was the Alps's warmest winter in 1300 years. Experts said this could have been part of global warming. There was some discussion about filling the river up by diverting water flows from large lakes and reservoirs in the Alps.
- "Alps warmest in 1,300 years as "winter" sets in". Reuters. January 20, 2007. Retrieved July 19, 2020.
- Marcello Rossi (July 27, 2017). "In Italy's parched Po River valley, climate change threatens the future of agriculture". Reuters. Retrieved July 19, 2020.
- Saltini Antonio, Dove l'uomo separò la terra dalle acque. Storia delle bonifiche in Emilia Romagna, Diabasis, Reggio Emilia 2004
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