A total of 640 businesses and investors sent a letter to President-elect Trump and Congress on Tuesday, strongly urging continued investment in the clean energy sector. The letter, coordinated by the nonprofit group Ceres, which works with investors and companies to promote sustainability, contains big tech names like Adobe, SalesForce, eBay, HP, SolarCity, Symantec and Tesla. In addition, the list includes many skiing companies, which are worried about losing their business in a warming world,