Last Post, January 24

Carbon doxide in the atmosphere is barely detectable.

What percentage of atmospheric gases is CO2? The Earth’s atmosphere is 78 per cent nitrogen, 21 per cent oxygen and 1 per cent other gases, including about 0.04 per cent CO2. So what percentage of CO2 is included in the greenhouse blanket that keeps us from freezing? Answer: 0.38 per cent. I rest my case.

Neville Wright, Kilcunda, Vic

Well said, Janet Albrechtsen (“Howard knew women would decide for themselves”, 23/1). There are men who work non-stop to reach the top of their fields. Many women, for many reasons, want the option to choose not to “sacrifice” their lives in that way. Feminists can shout all they like, but that’s the real world.

Arthur Giannopoulos, Mitcham, SA

Janet Albrechtsen is right to expose the blinkered views of feminists obsessed with a patriarchal view of society that denies gender equality. If anything, Kelly O’Dwyer’s decision to quit politics was brave, but it was her choice and hers alone.

Helen Scheller, Benalla, Vic

Anti-Adani protesters wave placards saying “coal kills”. A lot of things kill — cars, bikes, pools, sharks, party pills. But coal is the only one that earns us billions in exports and royalties to help pay for hospitals, schools, pensions and the services we expect our governments to provide.

John Mikkelsen, Castaways Beach, Qld

Julie Weckert (Last Post, 23/1) wonders what will become of men when the war on masculinity is won. Feminists will be moaning that there are no real men left.

Terry Birchley, Bundaberg, Qld

The revelation that North Korea has undeclared missile bases highlights how foolish Donald Trump has been in his dealings with Kim Jong-un. He has given Kim what North Korea wanted — respectability on the world stage — and got nothing but duplicity in return.

Derek Allan, Southport, Qld

A magician performed at my local mall recently. He said there was little magic in Canberra, so he came here to create some. The NSW and federal elections loom. There are many angry voters out there who will soon make some unpopular politicians vanish. Spooked, a few have already pulled off their own disappearing acts.

Mike Fogarty, Weston, ACT

On the principle that a picture is worth 1000 words, I suggest the brilliant cartoon by Johannes Leak (23/1) showing two drug-squad dogs asking a bloodhound “what are you here for?”, and the bloodhound, wearing a coat marked cadaver dog, replies “the recovery”, should be enlarged and prominently displayed at the entrances to all large-scale dance and music events attended by young people.

John Comrie-Greig, Ferndale, WA