Start with a contained boundary
The first recommended feasibility question is source-specific biological methane treatment, compared with existing approaches and unmodified organisms.
CRISPR / Research program K12
Exploratory program · Proposed Karam × Weatherhill directionClimate Biology
A biological effect is the beginning. A net climate benefit is the test.
The program question
At a defined source, could a contained biological process improve on existing treatment after energy, leakage, reliability and cost are counted?
Explore biological mechanisms relevant to methane, carbon cycling, crop resilience and input efficiency. Keep this exploratory track distinct from Karam’s human cellular-restoration program.
[C22] [C23] [C24] [C25] [C26] [C27] [C28]
Measure the complete outcome
Track methane entering and leaving the system, process emissions, energy, materials and useful output. Faster microbial growth alone is insufficient.
Connect the ventures carefully
Karam’s proposed role is biological evidence and target questions; Weatherhill’s proposed role is environmental measurement and process context, with qualified partners.
What would justify the next step?
This is not a deployed methane product, environmental-release program or carbon-credit offering. No net emissions reduction or commercial advantage is claimed.
From question to decision
A program names the scientific direction. A project brief defines a proposed bounded work package. A commercial scope specifies what a buyer would receive and what must be qualified before contracting. These are related, but they are not interchangeable.
Research context
External work. Explicit limits.
2026-04-24 · United States
Contained microbial experiment · CRISPRi screenMethanotroph screening: growth is not net climate benefit
A CRISPRi screen of approximately 45,000 guides identified determinants of methane-dependent growth and informed improved culture productivity.
- Target / subject
- Methane-dependent growth regulators
- Direction
- Gene repression screen
- Cell / setting
- Methane-consuming bacterial culture
- Boundary
- The study does not demonstrate low-cost industrial treatment of ambient atmospheric methane or a net greenhouse-gas benefit. Productivity, methane removal and life-cycle impact are different outcomes.
2026-03-27 · Not assigned
Plant reporter assays · CRISPR-accessible regulatory mappingSorghum regulatory maps: expression is not carbon removal
A sorghum regulatory map measured more than 30,000 CRISPR-accessible mutations in reporter assays. The output highlighted in the assessment was changed expression of photosynthesis-related proteins.
- Target / subject
- Photosynthesis-related cis-regulatory sites
- Direction
- Regulatory variation / expression modulation
- Cell / setting
- Plant reporter-assay context
- Boundary
- A percentage change in protein expression is not the same percentage change in crop yield or carbon removal. Carbon-storage durability was not established by this readout.
2026-01-26 · Not assigned
Greenhouse plant experiment · Transgenic overexpression — not CRISPRRice methane reductions: useful biology, not a CRISPR result
The assessment reports 38% and 58% lower cumulative methane over 70 days for two transgenic rice genotypes. One genotype also showed adverse seed-production traits.
- Target / subject
- Rhizosphere hydrogen-cycling relationships
- Direction
- Overexpression
- Cell / setting
- Two transgenic rice genotypes in greenhouse conditions
- Boundary
- This used overexpression rather than CRISPR. Greenhouse emissions reductions do not establish field-scale agronomic performance or a commercially useful net climate outcome.
2026-09-16 · China
Plant mechanistic study · Regulatory mechanism studyWLG rice resilience: adaptation is its own outcome
The WLG–DST–Prx24 regulatory module was associated with multi-stress tolerance, plant water retention and stress responses in rice.
- Target / subject
- WLG / DST / Prx24
- Direction
- Regulation of stress responses
- Cell / setting
- Drought, salt and heat stress contexts
- Boundary
- This is adaptation research. It does not measure global temperature reduction, methane mitigation or permanent carbon storage.
2026-09-30 · China
Plants + field trials · Cas9 validation + overexpressionOsRLK: distinguish mechanism tests from the beneficial field intervention
Cas9 knockout lines helped validate a mechanism linking OsRLK with root-associated microbes and nitrogen-use efficiency. The beneficial yield-related field results came from overexpression lines.
- Target / subject
- OsRLK
- Direction
- Knockout for mechanism; overexpression for beneficial traits
- Cell / setting
- Root microbiome and nitrogen-use context
- Boundary
- Calling the favorable field result a successful knockout would reverse the intervention. Better nutrient use alone does not quantify avoided nitrous oxide emissions.
2026-06-19 · Japan
Plant experimental study · TALE base editing — not CRISPRRubisco editing: TALE-based, not guide-RNA-directed CRISPR
A TALE-based chloroplast editor improved photosynthetic performance and plant growth in Arabidopsis. Its targeting system is not a guide-RNA-directed CRISPR platform.
- Target / subject
- Chloroplast Rubisco
- Direction
- Chloroplast sequence editing
- Cell / setting
- Photosynthesis and plant-growth models
- Boundary
- Faster plant growth is not evidence of durable atmospheric carbon removal. The molecular modality should not be mislabeled simply because both approaches edit genomes.
Source trail
Scientific summaries are adapted from the supplied 15 October 2026 CRISPR Project Assessment. Source records show the original references and review access; this release is not a new systematic review.
C22 — Henard JM, Lee SA, Yu YC, Shao D, Azad RK, Henard CA. CRISPRi-based functional genomic screening identifies genes essential for CH4-dependent growth in a methanotrophic bacterium. Science Advances. 24 April 2026;12:eaed4234.C23 — Groover ED, Ding D, Wang FZ, et al. Mapping cis-regulatory mutations at scale in sorghum enables modulation of gene expression. Nature Biotechnology. 27 March 2026.C24 — Shi LD, Ercoli MF, Kim J, et al. Reduced methane emissions in transgenic rice genotypes are associated with altered rhizosphere microbial hydrogen cycling. Nature Communications. 26 January 2026;17:2028.C25 — Wang Z, Wang S, Yue Z, et al. WLG coordinates multi-stress tolerance in rice by regulating DST-dependent H2O2 homeostasis and stomatal aperture. Nature Communications. 16 September 2026.C26 — Chang J, Wang D, Yao Z, et al. Wild rice locus enables microbiome re-domestication for enhanced nitrogen-use efficiency. Nature Microbiology. 30 September 2026.C27 — Yamori W, Nakazato I, Qu Y, et al. Chloroplast genome editing of Rubisco boosts photosynthesis and plant growth. Nature Communications. 19 June 2026;17:5066.C28 — Innovative Genomics Institute. Support from Google.org for AI science research on microbiomes and agricultural methane. Institutional research announcement. 26 January 2026.Bring one question worth answering.
Tell us the decision, the evidence you have and the gap that blocks the next step. Start with nonconfidential context.