Scientists are sucking carbon dioxide from the air with giant fans and preparing to release chemicals from a balloon to dim the sun’s rays as part of a climate engineering push to cool the planet.

Japan Today

HINTS
S Scientists  科学者
V [are sucking]  吸い込む
O carbon dioxide 二酸化炭素
補 
[from] the air  空気から
[with] giant fans  巨大な送風機と一緒に

and

V [(are) preparing] 準備する
O [to release] chemicals  化学品

V [to release]
O chemicals
補 
[from] a balloon 気球
[to dim] the sun’s rays 曇る 太陽の光

補 
[as part of ] a climate engineering push の一つとして
補 
O [to cool] the planet. 冷やすこと 惑星

V [to cool]
O the planet.