( These ( ( include ( ( the burning ) ( of ( ( fossil fuels ) ( for ( producing ( electrical ( energy ( , ( ( heating and ) transportation ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These)) (VP (VBP include) (NP (NP (DT the) (NN burning)) (PP (IN of) (NP (NP (JJ fossil) (NNS fuels)) (PP (IN for) (NP (VBG producing) (JJ electrical) (NN energy) (, ,) (NN heating) (CC and) (NN transportation))))))) (. .)))
These include the burning of fossil fuels for producing electrical energy, heating and transportation.
(ROOT (S (NP (NNP Heat)) (VP (VBZ is) (VP (VBN produced) (SBAR (WHADVP (WRB when)) (S (NP (NN paper)) (VP (VBZ is) (VP (VBN burned))))))) (. .)))
Heat is produced when paper is burned.