暖

饱暖思淫欲，饥寒起盗心

bǎo nuǎn sī yín yù , jī hán qǐ dào xīn

lechery springs from warmth and nourishment, kleptomania springs from hunger and cold (idiom)

三温暖

sān wēn nuǎn

sauna (loanword) (Tw)

世界变暖

shì jiè biàn nuǎn

global warming

乍暖还寒

zhà nuǎn huán hán

(idiom) (of early spring weather) alternating between warm and cold

供暖

gōng nuǎn

to supply heating (in a building)

保暖

bǎo nuǎn

to keep warm

保暖内衣

bǎo nuǎn nèi yī

thermal underwear

全球暖化

quán qiú nuǎn huà

global warming (Taiwan and Hong Kong usage)

全球气候变暖

quán qiú qì hòu biàn nuǎn

global warming

全球变暖

quán qiú biàn nuǎn

global warming (PRC usage)

冷暖

lěng nuǎn

lit. daily changes of temperature

冷暖房

lěng nuǎn fáng

cooling and heating