Kaya! ABC environment reporter Peter de Kruijff back with you again.
 

I've been deep in the world of cloning and genetic engineering for a new Science Friction series called Artificial Evolution!
 

The third of our four episodes is out today and it looks at how gene editing technology is changing fish and meat production around the world. (Which you can listen to here or read more about here.)
 

Gene editing involves using a pair of "molecular scissors" — best-known being the tool CRISPR — to make precise cuts in the DNA of living organisms like plants or animals.
 

When you make those cuts you can turn genes on or off, delete them altogether or add genes from other living organisms.
 

New Australian food regulations now mean companies don't need to go through lengthy public safety consultations if gene editing involves switching genes on or off, or snipping genes out.
 

That's because these sorts of changes are seen as a mutation that could happen naturally.
 

These relaxed rules could open the door for the creation of products similar to the musclier fish you can buy in Japan.
 

And climate change has been front and centre of the political cycle this week. 
 

Australia's first climate assessment was released ahead of an announcement on new national emissions targets. One million homes could be at risk, a disaster response force is needed and our food security is also vulnerable.
 

On a related note, science reporter Jacinta Bowler wrote about new research that showed how the world's 180 largest carbon emitters had contributed to heatwaves in the past 20 years.
 

Elsewhere in the science world, my colleague Ellen Phiddian examined whether mummies in Vietnam are the world's oldest we know of and the return of soft plastics recycling.
 

Or if you'd rather listen than read, lend an ear to Belinda Smith's latest episode of Lab Notes about how sunscreen SPF is tested, especially as we start thinking about warmer days in spring.
 

If you have feedback, a sciency photo or something else to share, send us an email.
 

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Disease-resistant pigs, faster-growing fish and heat-tolerant cows are among a new class of animals that are being genetically engineered for the dining table. Similar meat products could soon be sold in Australia without lengthy regulatory testing.

Archaeologists claim they've found the oldest-known deliberately mummified remains in burial sites across China and South-East Asia, with some individuals dating back 14,000 years.

One in 10 homes could be effectively uninsurable by 2050, while lost labour productivity to extreme weather could wipe $211 billion in household wealth, the first national Climate Risk Assessment warns.

Industry is cautiously moving ahead with a new soft plastic recycling system in the wake of the REDcycle disaster. How will it work, and can we really have a circular soft plastic system in Australia?

Emissions from the 180 biggest carbon polluters directly contributed half of the total increase in heatwave intensity between the late 1800s and this century, a new study found.