(Bloomberg) -- Canada is preparing to sell $4 billion of sustainable debt in its first issue since the government amended its sovereign green-finance framework in November to include nuclear power. Most Read from BloombergA Spike in Heart Disease Deaths Since Covid Is Puzzling ScientistsBYD’s New $233,450 EV Supercar to Rival Ferrari, LamborghiniNigeria Delivers Jumbo Rate Hike to Aid Its Battered NairaTreasuries Mixed Amid Another Flurry of Bond Sales: Markets WrapThe 10-year bonds may yield ab