Lyons, Atmospheric seasonality as an exoplanet biosignature, Astrophysical Journal Letters, 2018, 858, L14 His research includes exploring the nuances of planetary habitability and identifying and assessing remotely detectable biosignatures
He previously earned his Ph That last bit I find hard to believe

Search for Life Beyond Earth: Developing a Guidebook

Without rainforests, which absorb much of the carbon in our atmosphere, the greenhouse effect continues to trap heat.

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David Attenborough: A Life on Our Planet (2020)
The intensity and color of the light reflected by the planet can also help scientists determine the surface composition of the world
'David Attenborough: A Life on Our Planet' Netflix Review: Stream It or Skip It?
Not because it enlightened me to the reality of the issue but because it reminded me of the barbaric reality that is humanity
Search for Life Beyond Earth: Developing a Guidebook
Do not look away from this documentary for a second
Hopefully many people will be as inspired and awakened as I was when watching this Many island nations have created no-fish zones around reef areas, allowing both fish populations and the fishing industry to boom
I've never felt such awe, sadness and hope in the space of minutes, or sometimes simultaneously Performance Worth Watching: Anybody going to debate whether Attenborough is an international treasure, a wealth of knowledge and the greatest-ever ambassador for environmentalism? Temporal biosignatures are time-dependent cycles in gaseous or surface biosignatures

“A Life on Our Planet”: Attenborough’s powerful witness statement

When Attenborough was a child, there were only 2.

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David Attenborough: A Life on Our Planet (2020)
Biosignatures are substances, objects, or patterns that are produced by life and can be separated from potential non-living sources
“A Life on Our Planet”: Attenborough’s powerful witness statement
If you deny it you are a stupid non intelligent human being who should NOT be allowed to be in charge and make big decisions on anything period! Change doesn't start with educating or influencing governments or politicians, it starts with each one of us
“A Life on Our Planet”: Attenborough’s powerful witness statement
For example, vegetation growth in the spring and summer causes a decrease in the concentration of atmospheric carbon dioxide in the Northern Hemisphere, which then increases again as plants die back during the autumn and winter
David Attenborough, one of very few you can hold in as high regard as Gandhi or MLK, calmly and clearly enunciates his experiences throughout his 94 years, bearing witness to the carnage, the chaos and the destruction wrought by the populations of this world on the oceans, the landscapes and all the lifeforms we inhabit and share our planet with All we need to do to join our world community in the fight for climate justice is accept the facts and put forth a little effort towards ecologically conscious behaviors
If, like most, it's a story and message you're familiar with, make today the first day of the rest or your life - go for it, start making the changes the future yous need you to make, to save their world, the flora and fauna, from the imminency of self inflicted mass extinction, holocaust, genocide and Armageddon Schwieterman has gained a glimpse into multitudes of possible life-bearing conditions that could help us link our observations of exoplanets with possible biosignatures

Search for Life Beyond Earth: Developing a Guidebook

Attenborough wanders through long-abandoned buildings, taking in the surreal sights with a furrowed brow.

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David Attenborough: A Life on Our Planet (2020)
As-yet unknown compensatory mechanisms may allow advanced life to exist in the extreme conditions found on other planets
“A Life on Our Planet”: Attenborough’s powerful witness statement
Please watch David Attenborough: A Life On Our Planet
Search for Life Beyond Earth: Developing a Guidebook
We are at a crossroads